Tom's Big Spiders - Tarantulas and Inverts

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A podcast devoted to the proper care and upkeep of tarantulas and other inverts. After keeping a G. porteri for over 16 years, I decided that I wanted to add another tarantula to my collection. Several years later, I now keep over 100 specimens and 90+ different species. It’s safe to say that I a…

Tom Moran


    • Jun 1, 2025 LATEST EPISODE
    • every other week NEW EPISODES
    • 49m AVG DURATION
    • 362 EPISODES

    4.9 from 184 ratings Listeners of Tom's Big Spiders - Tarantulas and Inverts that love the show mention: husbandry, hobbyists, keepers, thanks tom, species, taking care, take care, caring, youtube, channel, expert, great info, keeping, information, isn, thank you so much, experience, watch, different, topics.


    Ivy Insights

    The Tom's Big Spiders - Tarantulas and Inverts podcast is an incredible source of knowledge for anyone interested in tarantulas and true spiders. Hosted by Tom, who is extremely passionate about the subject, this podcast provides up-to-date and easily digestible information on the tarantula hobby. One of the best aspects of this podcast is Tom's perspective and his ability to present information in a clear and concise manner. He is a wonderful source of knowledge and his love for all arachnids shines through in every episode.

    Another great aspect of this podcast is the inclusion of guests such as Tom's wife and Luis. These episodes provide a different perspective and add variety to the content. While it would be nice to have more guests, it is not necessary as Tom's solo episodes are just as enjoyable.

    The worst aspect of this podcast is that sometimes the content may not align with the title of the episode. Tom tends to go off on tangents and trails off on different topics, which can be confusing at times. Additionally, some listeners may find that Tom's carefulness not to offend anyone can make him hesitant to take a firm stance on certain topics.

    In conclusion, The Tom's Big Spiders - Tarantulas and Inverts podcast is an amazing resource for anyone interested in tarantulas. Tom's expertise, passion, and ability to present information clearly make this podcast a must-listen for both beginners and experienced hobbyists. Despite some minor drawbacks, this podcast offers valuable insights into the world of tarantula keeping.



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    Latest episodes from Tom's Big Spiders - Tarantulas and Inverts

    P. metallica "Gooty Sapphire Ornamental" Care

    Play Episode Listen Later Jun 1, 2025 67:18


    First off, we'll share some listener comments. Then, we'll share some spider news. Our main topic for today (14:30) is the care of one of the most popular tarantulas in the hobby - the Poecilotheria metallica or "Gooty Sapphire Ornamental."

    Tarantula Molting Guide

    Play Episode Listen Later May 25, 2025 65:00


    Molting can be the most exciting yet simultaneously stressful part of keeping tarantulas. In this episode, we'll discuss the entire process -- from premolt to the first feeding -- and what to expect. 

    Amazing Spider Mothers!

    Play Episode Listen Later May 11, 2025 49:20


    First, we'll discuss some listener comments. Then, how would you like a spider that produced fluorescent red silk? Scientists have made it happen! Finally, we'll discuss some amazing spider mothers and their incredible behaviors. The peat moss that I use:

    Some Tips for Setting Up Moisture Dependent Tarantulas

    Play Episode Listen Later May 4, 2025 54:52


    In this episode, we'll discuss what it takes to create a good setup for a moisture dependent tarantula. 

    How To Explain Large Tarantula Collections

    Play Episode Listen Later Apr 27, 2025 64:39


    To kick this one off, I discuss the final meeting of the Arachnid Appreciation Club, read some listener comments, and explore an article about the spider that makes the world's largest web.Then, for our main topic, I offer some tips on how to explain to non-hobbyists why we have such large collections. 

    Anti Exotics Legislation - Why Are We Targeted?

    Play Episode Listen Later Apr 13, 2025 66:46


    With all that's going on in the world, why do politicians keep trying to pass laws banning exotic pet keeping? In this episode, we'll talk about some recent laws proposed to curb the keeping of exotics and discuss how, as a hobby, we can do better when it comes to how we present the tarantula hobby to the public. 

    Aphonopelma Species Update 2025

    Play Episode Listen Later Apr 6, 2025 56:05


    First, we'll discuss what to do if you think that you were sent the wrong tarantula species.Then, I have had a LOT of folks ask for me to do an update on my Aphonopelma species, so here goes! When last we checked in on these slow-growers, it was 2023. In this episode, I'll discuss their growth and appearances. 

    A Crash Course in Mygalomorphs vs. Araneomorphs - Different Spider Infraorders

    Play Episode Listen Later Mar 30, 2025 57:39


    Often, when I post videos of spiders other than tarantulas, I get comments like, "They're pretty, but they don't live long" or "That's nice, but I don't keep true spiders." In some instances, the animal that I'm showing off is a) very long lived and b) not a tarantula OR a true spider. Many are not aware of the difference or what to expect from both of these groups.In this episode, I attempt to break down the differences between spiders in the infraorders Mygalomorphae and Araneomporphae and share my experiences keeping species from both. I will also touch upon the suborder Mesothelae. NOTE: This list is NOT comprehensive and is only meant to be a quick crash course on this topic! 

    Worth a Second Look ft. H. gigas (Cameroon Red Baboon)

    Play Episode Listen Later Mar 16, 2025 56:15


    First, we'll hear some listener feedback.Then, we held our second Arachnid Appreciation Club meeting at my school, and it went great. I'll talk a bit about what we did and my plans for the future.Finally, (28:00) in this new feature, I'll talk about a species of tarantula that I think gets unfairly ignored. In our first episode of "Worth a Second Look," we'll be discussing the Hysterocrates gigas or "Cameroon Red Baboon."  

    Untitled Episode

    Play Episode Listen Later Mar 9, 2025 52:44


    When making my rehousing videos, I often talk about what behaviors I expect from the spiders as they settle in. However, I often forget to follow up and update folks on how they are getting on. In this episode, we'll take a look at some recently rehoused spiders as I discuss their behaviors in their new enclosures. 

    Arboreal Tarantula Genus Comparison

    Play Episode Listen Later Mar 2, 2025 64:55


    It's season 8! And to kick it off, we'll discuss a new paper that examines the symptoms of a Poecilotheria species bite.Then, I'm often asked what the "best starter arboreal" spider is. Although the popular answer is usually an Avicularia or Caribena species, folks still seem to struggle with their care. This got me to thinking...how do the other popular arboreal genera compare when you look at ease of care, temperament, and behaviors? In this episode, we'll take a look!

    My Favorite Spiders to Feed

    Play Episode Listen Later Feb 17, 2025 66:19


    First off, we'll read an article that discusses the successful reintroduction of a previously endangered spider species in Europe. Next, we'll hear some listener feedback.Then...feeding is one of the most entertaining and rewarding aspects of the hobby. In this episode, I'll discuss the 8 spiders that I enjoy feeding the most. 

    Confronting My Potential Bias When It Comes to Old World Behaviors

    Play Episode Listen Later Feb 9, 2025 56:11


    So, I recently posted a video on YouTube discussing the tarantula species I've found to be the most defensive. Although I tried to think of an Old World species that gave me a difficult time, I didn't have a single one on the list. I knew that this was going to be shocking for some, but I wasn't expecting to be called "biased" when it came to how I present Old World behaviors. In this episode, I will discuss how and why my opinions on Old Worlds have changed over the years, and do some soul searching as I consider the message I am putting out. Check out the video here! 

    So, You Want a Giant Tarantula: A Species Comparison

    Play Episode Listen Later Feb 2, 2025 65:55


    First, we had our first Arachnid Appreciation Club at my school, and I'll share a bit about my preparation for it.Then, I have people message me to ask which "giant" tarantula species they should start with. In this episode, I'll compare the genera with the most massive spiders: Lasiodora, Phormictopus, Pamphobeteus, Xenesthis, and Theraphosa.

    Showcase Spiders! The Most Visibile Tarantulas I've Kept 2025

    Play Episode Listen Later Jan 19, 2025 58:59


    First, we discuss some feedback from last week's episode (and the fact that I had JUST covered this topic in September!).Then, I get asked all the time which species are the most visible out of the ones that I keep. Now that it's been several years since I last covered this topic, I have some new ones to add.

    The 5 Most Defensive Tarantulas I Have Raised

    Play Episode Listen Later Jan 12, 2025 54:38


    Crazy bolting. Hair kicking. Threat postures. Slapping at the ground. In this episode, I'll discuss the five most defensive (notice that I didnt' say "aggressive") tarantula species I have raised...plus a couple alternates. In each case, this time I will discuss how, in many instances, I was at fault for the behaviors. 

    The Importance of Experience in the Tarantula Hobby

    Play Episode Listen Later Jan 5, 2025 66:22


    Happy New Year! First, we have a few species name changes to discuss. Then, we'll talk about four new tarantula species identified found in India's Western Ghat Mountains. After that, we have some listener comments from last week's episode.Finally…"How am I supposed to get experience with old world tarantula speed if I'm being told not to keep them?" The question of "experience" comes up quite a bit in hobby discussions. Can folks successfully keep tarantulas without having much first hand experience? Sure. But is first-hand experience vital to a tarantula keeper? Absolutely. In this video, we'll discuss the type of experience and why, in the end, hands-on experience is so important for the developing keeper. 

    What's Wrong Here? Using Error Analysis To Improve Tarantula Care

    Play Episode Listen Later Dec 30, 2024 63:53


    First, we'll discuss an article in Forbes about the four tarantulas that are traded on the illegal pet market.Then, it's the Tarantula Test Part IV...sort of. In this episode, we'll discuss ten common scenarios in which we try to determine what mistake the keeper might have made.Happy New Year, all! 

    Top Ten Most Asked Tarantula Questions in 2024

    Play Episode Listen Later Dec 22, 2024 57:25


    First, we discuss some comments from last week's episode.Then, we'll take a look at the most asked tarantula questions in 2024. Happy Holidays, All! 

    A Discussion of Tarantula Temperatures

    Play Episode Listen Later Dec 15, 2024 65:51


    I have to be honest; if someone told me years ago that we'd still be arguing over the best temperatures for tarantulas in 2024, I would have been shocked. However, after posting my winter episode, some folks made some negative comments about keeping tarantulas in the lower range, indicating that this debate is still very much alive. In this episode, we will discuss why having temps dip a bit in the winter is not bad for your spiders, and examine why keepers fail to recognize that many of the species we keep experience MUCH lower temps in the wild. 

    Keeping Tarantulas in the Winter - 2024

    Play Episode Listen Later Dec 1, 2024 55:33


    First, we discuss some comments I received about handling tarantulas.Then, winter is upon us! Now that the temps are getting cooler and the heat is pumping, we may need to consider making some changes for the frigid winter months. In this episode, we'll discuss some tips for keeping your tarantulas safe during the winter.Below are links to some of the heating products mentions in this podcast. These are ONLY suggestions. Be sure to do research to see what works best for you!  DeLonghi Radiator HeaterLifesmart Infrared HeaterHumidifier (evaporative)Ultratherm Heat Pads

    Tarantula Handling: Some Things to Consider

    Play Episode Listen Later Nov 24, 2024 57:58


    After years of tarantula handling falling out of vogue, it seems that more and more folks are now holding their eight-legged wards. Why the change? In this episode, we'll break down why there is a resurgence in this practice and discuss the pros and cons of handling vs. not handling. 

    Sprucing Up A Tarantula Enclosure without Rehousing

    Play Episode Listen Later Nov 17, 2024 56:13


    First, we discuss the recent tarantula smuggling incident in Peru.Then, I'll share some tips on how to fix up tarantula enclosures without having to rehouse the spider.  Has your substrate settled and is now too shallow? Does your spider need more coverage? Did the cork bark hide collapse? Here are some things that you can do. 

    Tarantula Questions That I Find a Bit Frustrating

    Play Episode Listen Later Nov 10, 2024 56:51


    When did you first start keeping Old World tarantulas? For the first half of this podcast, we'll hear some listener responses to last week's episode.Then, I've been answering questions about tarantulas for over a decade, and I often get the same questions over and over...and that's okay. I've had folks ask me if I ever get annoyed by that. Truth be told, there are only a handful of questions that I find a bit frustrating. In these cases, it's usually because there is no quick answer. In this episode, I discuss the five questions that tend to vex me a bit. 

    Do Spiders Dream? and "Old World Tarantula Anxiety"

    Play Episode Listen Later Nov 3, 2024 50:42


    First, we discuss a recent article that questions whether spiders can sleep and even dream.Then, why do many keepers feel so anxious about possibly keeping Old World tarantulas? We'll discuss how keeper attitudes about Old World species have change from the '80s and '90s to now. 

    The "Mysterious" T. albopilosus or Curly Hair Tarantula

    Play Episode Listen Later Oct 20, 2024 50:22


    The Tliltocatl albopilosus is one of the most established, popular, and widely-kept species in the hobby. However, ask ten different keepers about their experiences with the growth rate, behavior, and temperament of this species, and you're likely to get ten different responses. In this episode, we'll discuss this awesome species and why there seems to be so much variation in its care and husbandry. 

    Tarantula Prices - Why Are These Things So Expensive?

    Play Episode Listen Later Oct 13, 2024 49:43


    After some listener comments and spider news, we'll discuss why some tarantulas are so expensive. 

    Feedback on Defensive Tarantulas and the "Heart Attack Pack"!

    Play Episode Listen Later Oct 6, 2024 57:34


    First off, we discuss a story about noble false widow spiders preying upon much larger vertebrate prey. Then, it's onto listener feedback on the last episode about my most defensive tarantulas.Finally, this week I received my "Heart Attack Pack" from Fear Not Tarantulas, and I discuss what I received.FIND THE HEART ATTACK PACK HERE!

    The Most Defensive Tarantula Species I've Kept

    Play Episode Listen Later Sep 29, 2024 57:22


    First, we start off with some listener feedback. Then, we'll discuss some recent spider news before we get to the main topic. I've been asked many times over the years which species of tarantulas that I've raised have been the most defensive. My answer may surprise you! 

    Assessing the Risk of Overexploitation to a Tarantula Species in the Pet Trade - A Breakdown

    Play Episode Listen Later Sep 22, 2024 65:38


    After some listener comments and tarantulas in the news, I breakdown some key points in the paper "Assessing the Risk of Overexploitation to a Tarantula Species in the Pet Trade" and explain why this should be important to informed, responsible keepers. CLICK HERE to read the entire paper! 

    Grammostola Pulchra "The Brazilian Black" Care...and Orbweaver Spider News

    Play Episode Listen Later Sep 15, 2024 57:35


    First, we take a few listener comments.Then, in spider news, scientists think that Orbweaver spiders may have an interesting way of hunting fireflies.Finally, for the "meat" of the podcast, we discuss the care for one of the hobby's most beloved tarantulas, the Grammostola pulchra (AKA, the Black Lab of Tarantulas). (15:10)

    Andrew Smith's Tarantula Documentaries and Why We Love Fossorial Tarantulas

    Play Episode Listen Later Sep 8, 2024 59:34


    So, after mentioning Andrew Smith's AMAZING documentary Theraphosa & Ephebopus: Suriname's Giant Forest Floor Tarantulas, it became clear that many folks weren't familiar with Andrew and his incredible work. In this episode, I discuss why folks should be drooling over these DVDs and how we can help crowdfund the next video in the series.Then, we spend a bit of time discussing why folks can find a lot to love with fossorial tarantulas.SUPPORT Andrew Smith's Tarantulas of Costa Rica by clicking here!Check out Andrew's other amazing docmentaries by clicking here! LoveTarantulas on YouTube!

    When Burrowing Tarantulas Don't Resurface

    Play Episode Listen Later Sep 1, 2024 60:19


    Although I've addressed this topic before, it's an important one. I've received quite a few messages over the past year from folks who are concerned over their tarantulas who have seemingly been burrowed for way too long and who have asked for advice for what to do. In this episode, I'll discuss the species I've had this issue with and explain what to do if you encounter this behavior.Then, it's on to listener comments and spiders in the news!Read the National Geographic Article Here! 

    Why Arboreal Tarantulas Shouldn't Be Overlooked

    Play Episode Listen Later Aug 25, 2024 51:42


    And, we're back on Sundays!First, we discuss a new species of Aphonopelma recently described.Then, I take some listener feedback.And, for the main topic, we'll discuss some reasons why hobbyists shouldn't overlook arboreal tarantula species. 

    Tarantulas with Undeserved Bad Reputations (and Jorō Spider News!)

    Play Episode Listen Later Aug 19, 2024 63:57


    First off, we'll discuss a new study on the "Jorō spider" that explains why it is doing so well in urban environments (and why it shouldn't be feared).Then, we'll discuss a comment I got about a tarantula park that perpetuates negative stereotypes about these animals.Then, for our main topic, I'll discuss 6 species or genera of tarantulas that get undeserved bad reputations and break down where these notions came from. 

    Phormictopus Genus Update with 16 "Species"

    Play Episode Listen Later Aug 12, 2024 59:41


    Now that the last four Phormictopus species I acquired have put on some size and are showing some adult color, it's time to do an update on the 16 "species" that I keep. In this episode, I'll discuss age, colorations, and behaviors as I take you on a tour of my Phormictopus collection. For those interested, I'll also be posting up a video version on YouTube later this week.  NOTE: Many of these "species" are likely just regional variants of P. cancerides, but we won't know for sure until this genus is studied further.

    Skeleton Tarantulas! Ephebopus Genus Review ft. 4 Species

    Play Episode Listen Later Jul 29, 2024 48:10


    Well, it's been over two years since I got my Ephebopus slings, and it's finally time for a proper genus review! In this episode, I'll talk about the care and set up of E. murinus (The Skeleton Tarantula), E. uatuman (The Emerald Skeleton Tarantula), E. refescens (The Red Skeleton Tarantula), and E. cyanognathus (The Blue Fang…Skeleton Tarantula)!

    Planning for a Tarantula Presentation

    Play Episode Listen Later Jul 22, 2024 58:25


    First, we'll discuss some listener comments from last week's episode.Then, we've all been there. You're at work or having company over, and suddenly you find yourself giving an impromptu presentation about tarantulas to folks who may be terrified of them. Or, perhaps you're someone who is planning to present about spiders at a school or library. It can be difficult to stay focused on the fly, which is why it's prudent to plan out one of these presentations ahead of time. In this episode, I share some strategies and topics that I use when this happens to me.Also, check out Andrew Smith's amazing tarantula documentaries HERE!

    Not What I Expected - 7 Tarantula Species That Defied Expectation

    Play Episode Listen Later Jul 14, 2024 50:30


    In this episode, I will talk about seven tarantula species that defied the expectations that I had for them after I did my research. 

    The "Spectrum" of Tarantula Terrestrial, Fossorial, and Arboreal Enclosure Setups

    Play Episode Listen Later Jul 7, 2024 50:56


    Recently, I did a podcast about some of my terrestrial spiders that appreciated room to dig as adults. Since then, I've received questions about fossorial spiders that seem to want to live terrestrially, and even arboreal spiders that prefer to burrow a bit. Is this behavior cause for worry? In this episode, I'll break down why it is not and explain why we should expect a spectrum of behavior when it comes to our spiders.

    Common Tarantula Keeper Mistakes Part 2

    Play Episode Listen Later Jun 30, 2024 63:41


    I first covered this topic back in December of 2021. However, as the years have passed, I have encountered some new issues troubling hobbyists. In this episode, I'll break down ten of them.

    Tips for Raising Huntsman Spiders

    Play Episode Listen Later Jun 23, 2024 41:38


    A few years ago, I started keeping several Heteropoda (Huntsman) species, and it was quite the learning curve in many ways. In this episode, I'll discuss the care, as well as tips, for raising huntsman spiders. 

    Tarantula Setups - Real vs. Fake Plants

    Play Episode Listen Later Jun 16, 2024 45:37


    When setting up a tarantula habitat, there are usually four main "ingredients": substrate, a hide, a water dish, and plants. However, when putting plants in an enclosure, is it better to use real or fake plants? In this episode, I break down the pros and cons of both types. For those interested in check out my story in the Horror Over the Handlebars: A Yankee Scares Connecticut Horror Anthology, here is the LINK. 

    A Rainbow of Spiders 2 - Some of the Most Colorful Spiders I've Kept

    Play Episode Listen Later Jun 9, 2024 95:41


    After doing a video featuring a rainbow of different spiders, I thought that it might be fun to do an "extended commentary" in which I cover even more species.  My hope is that people might listen to this list and discover some colorful spiders they weren't initially aware of.

    Terrestrial Tarantulas That Burrow (or Rethinking How We Keep Terrestrials)

    Play Episode Listen Later Jun 2, 2024 63:43


    For years, tarantulas designated as "terrestrial" were given a couple inches of substrate and a hide for a setup. Now, although this isn't necessarily wrong, I've found that many of my so-called "terrestrial" species will continue to burrow right on through adulthood if given the substrate depth to do so. In this episode, I'll discuss how I'm changing how I keep many of my terrestrial species and list off some of the ones that currently burrow as adults. 

    Tityus stigmurus or the "Brazilian Yellow Scorpion" Care

    Play Episode Listen Later May 19, 2024 39:47


    In this episode, we break away from talking about spiders for a bit and instead discuss the care for T. stigmurus. This amazing little scorpion can produce asexually and can be kept communally.  I started with only one specimen back in October of 2016, and have kept dozens since! 

    The Most Heavily Webbing Spiders I Keep

    Play Episode Listen Later May 12, 2024 52:44


    I've had a bunch of folks ask me to cover this over the years, and I honestly thought that I had already done so! In this episode, I go over a dozen species of spiders I keep that love blanketing their enclosures in webbing.Happy Mother's Day to all!

    D. Pentaloris "The Tiger Rump" vs. H. formosus "The Pumpkin Patch"

    Play Episode Listen Later May 5, 2024 55:34


    First off, we discuss last week's episode and some of the feedback I received (a HUGE thank you to all who took the time to comment!).Then, it's the battle of the orangey/black dwarfs as Davus pentaloris "The Tiger Rump" takes on Hapalopus formosus "The Pumpkin Patch"! 

    The Future of the Podcast and Signs Your Old Tarantula Is Dying

    Play Episode Listen Later Apr 28, 2024 51:32


    If someone would have told me back in early 2018 that this podcast experiment would continue for over 300 episodes, I would have laughed. But here we are, in our seventh year, still churning out shows. That said, I always worry that the program will eventually jump the shark and overstay its welcome. To kick this one off, we'll discuss the fine line I try to walk producing shows that will appeal to both beginners and more advanced keepers alike and how you can all help as we move ahead.Then, my old adult female Harpactira pulchripes passed this week after a bizarre occurrence that had happened only once before. This will lead into a discussion about signs that your old tarantula is dying.

    The Best Tarantula Species for Folks Raising up Their First Slings

    Play Episode Listen Later Apr 21, 2024 53:22


    As I've spent more time keeping tarantulas, I've realized that questions "what is a good beginner species?" and "what is a good species to raise as a first time sling? have two very different answers.  Just because a species is easier to care for as an adult does not always make it an easy one to raise up. In this episode, I'll discuss the species I tend to recommend when asked what species make for good first-time slings. 

    The Importance of Establishing Routines with Growing Tarantula Collections

    Play Episode Listen Later Apr 15, 2024 38:54


    How do you know when you're getting too many tarantulas? How can you tell when you're reaching what should be your limit?In this episode, we'll discuss the importance of establishing routines and setting boundaries early on to avoid having your collection turn into a hoard. 

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