r/bluetongueskinks Mar 14 '26

Announcement Male/Female Shed Testing Now Available!

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89 Upvotes

It's official! BLUE TONGUE SKINK MALE/FEMALE SHED TESTING is now available!

An absolutely amazing thank-you to Phenome.com for the production and all the other blue-tongued skink breeders that collaborated on this project! I am grateful to be part of this project as well.

Hit up https://phenome.com/product/skink/ to order your test today!

US-based company. Please look into your country's laws on Exporting/Importing sheds.


r/bluetongueskinks Oct 24 '25

Education Yearly Reminder: Indonesian Blue Tongue Skinks DO NOT Brumate

46 Upvotes

Indonesian blue tongue skinks do not naturally brumate.

Only their Australian cousins do - even then, not all of them decide to brumate. 

I have made this a yearly reminder since many places online do not actually differentiate and it gets really confusing!

The following temperature information is gathered from multiple studies that recorded ground temperatures within Indonesia, Papua New Guinea, and Australia. If others have more recent (and therefore more accurate data), please provide the links and we will dig through and adjust!

Indonesian blue tongue skinks do not experience ambient temperatures below 70℉ (21.1℃). Indonesia/Papua New Guinea is a tropical climate that does not experience seasonal variation aside from “wet” and “dry” seasons caused by the amount of rainfall. 

Region / Population Temp Min–Max  (°F) Temp Min–Max  (°C) Humidity Min–Max (%) Notes
Papua New Guinea Peninsula (Trans-Fly & Peninsula lowlands) (Irian Jaya, AKA Papuan) 73–96 ℉ 22.7–35.5 ℃ 68–100 % Hot, humid tropical lowlands; humidity remains high even at night
Merauke region, South Papua 72–98 ℉ 22.2–36.6 ℃ 60–96 % Seasonal wet–dry cycles; some early dry season drops in relative humidity
Sorong (West Papua lowlands) 74–95 ℉ 23.3–35 ℃ 70–98 % Stable warm temps year-round; low night cooling
Aru Islands 73–95 ℉ 22.7–35 ℃ 68–99 % High canopy coverage; buffered extremes
Kei Islands 75–95 ℉ 23.8–35 ℃ 72–100 % Coastal and forest edge habitat
Ambon / Seram (Maluku) 72–93 ℉ 22.2–33.8 ℃ 70–99 % Strong diurnal relative humidity cycle, small temp fluctuation
Halmahera (North Maluku) 74–94 ℉ 23.3–34.4 ℃ 60–100 % Lowland rainforest floor and edge; high humidity
Tanimbar Islands 75–97 ℉ 23.8–36.1 ℃ 62–95 % Drier than Halmahera; more open woodland
Northern Papua rainforest interior 72–91 ℉ 22.2–32.7 ℃ 78–100 % More buffered temps, extremely high night humidity

Due to the consistency in temperature in their tropical environment, Indonesian blue tongue skinks are active year-round.

The majority of Australian blue tongue skinks do not experience ambient temperatures lower than 50℉/10℃. Blotched blue tongue skinks, however, can experience as low as 45℃ based on the studies we found. This seasonal variation is why Australian species brumate. Some species, such as Shinglebacks, Blotchies, Westerns, and Centralians require quite low brumation temperatures to successfully reproduce. Too high of temps have caused reproductive struggles.

NOTE: WITH EXTREME HIGHS AND LOWS THESE SKINKS ARE HIDING AWAY IN SAFER TEMPERATURES. Also; Aussie skinks do experience some higher humidity, but these are MICROCLIMATES and not consistent year-round.

MAINTAIN TYPICAL RECOMMENDED RANGES!

Region / Species (Common) Temp Min–Max (°F) Temp Min–Max (°C) Humidity Min–Max (%) Notes
Northern Territory (Top End, Arnhem Land) NORTHERN 71–102 ℉ 21.7–38.9 ℃ 45–96 % Seasonal wet–dry fluctuations; strong midday peaks, high humidity at night
Eastern Queensland (coastal) EASTERN 68–97 ℉ 20–36.1 ℃ 50–95 % Humid subtropical forest edges and open woodland
New South Wales (Sydney Basin) EASTERN 59–95 ℉ 15–35 ℃ 35–88 % Cooler nights, warm sunny days; high variability
Victoria & Tasmania (cool temperate) BLOTCHED 45–86 ℉ 7.2–30 ℃ 55–100 % Morning dew, fog common; basking critical for activity
South Australia / Western Australia (arid) SHINGLEBACK 55–110 ℉ 12.7–43.3 ℃ 10–65 % Very hot ground temps midday, humidity spikes pre-dawn
Southwestern WA forest WESTERN 50–102 ℉ 10–38.9 ℃ 25–80 % Ground shade buffers peaks
Arid interior (Spinifex plains) CENTRALIAN 60–113 ℉ 15.5–45 ℃ 8–60 % Extreme heat; uses burrows to escape
Nullarbor & semi-arid south SHINGLEBACK 53–108 ℉ 11.6–42.2 ℃ 12–58 % Pronounced daily fluctuation
Northern arid NT / WA WESTERN 72–107 ℉ 22.2–41.6 ℃ 20–70 % Recorded at ground level under spinifex
Central Australia (desert margins) CENTRALIAN 66–111 ℉ 18.8–43.8 ℃ 10–55 % Midday temperatures often exceed activity thresholds

NOTE: WITH EXTREME HIGHS AND LOWS THESE SKINKS ARE HIDING AWAY IN SAFER TEMPERATURES. Also; Aussie skinks do experience some higher humidity, but these are MICROCLIMATES and not consistent year-round.

MAINTAIN TYPICAL RECOMMENDED RANGES!

Physiology

Reptiles are ectothermic, which means they need to warm up via their environment. They need heat to digest food; they need heat for their immune system to work and to fight off infections; they need heat for literally everything regarding bodily function.

If you put any reptile that doesn’t naturally brumate into too cold of an environment to “force” brumation, those reptiles become lethargic and can get quite sick due to their dropped immune system. They naturally shut down to try and preserve resources, as they cannot do anything without their proper heat range. This is not brumation. This is a physiological stress response. This can be very harmful to them!

Arguably, Indonesian blue tongue skinks experience this physiological stress in response to temps that are too cold. If your Indo is showing “brumation” symptoms, the environment is most likely too cold, too empty, or the animal is sick.

Winter in the northern hemisphere is the equivalent of dry season in Indonesia/Papua New Guinea. This means that our winters are the breeding season for Indos. It is quite common for some skinks to go off of food during this time due to hormones.

Behavior & Recommendations

  • If your skink is quite active, but not eating much, that is typically hormones. We recommend you triple check temps, but I would not be concerned.
  • If your skink is inactive and not eating much, triple check temps and make sure your skink isn’t going into shed. Going into shed is often a cause to hide more frequently and not eat - this behavior shouldn’t last more than 2 weeks at a time, however.
  • If your temps are too cold at night, please use a deep heat projector, ceramic heat emitter, or radiant heat panel to increase ambient temps - heat mats are not appropriate in this regard as they do not warm up ambient temps properly. Heat mats are not appropriate for blue tongue skinks in general.
  • If your daytime temps are too cold, you will either need to add a ceramic heat emitter/radiant heat panel or deep heat projector as supplemental heat. These are not appropriate for basking, they are only for supplemental heat. A deep heat projector assists with warming surface temperatures, while ceramic heat emitters or radiant heat panels assist with ambient temperatures. You may also need to look into increasing the wattage of the incandescent or halogen bulb used for basking.
  • Weigh adults twice a month - if they lose 10% or more of their initial body weight, that is a concern. (So if a 400 gram lizard loses 40 grams or more, that is a concern)

Recommended Temps & Humidity

Indo temps and humidity should be as follows:

  • Basking (surface temperature measured with an infrared laser thermometer): between 105-115℉ (40-46℃). Surface temperatures are naturally higher than ambient temperatures. 
  • Ambient Cool Side (measured with a digital thermometer down at skink level, cool side of the enclosure): 70-80℉ (21-26℃)
  • Ambient Warm Side (measured with a digital thermometer down at skink level, warm side of the enclosure) : 85-95℉ (29-35℃)
  • Night time range: 70-75℉ (21-24℃) - We recommend providing supplemental heat when temps reach below 70℉ (21℃)
  • Humidity: Humidity for ALL Indonesians (yes, including Halmahera) must be within the 60-100% range. They naturally experience an increase and decrease in humidity within this range. It stays above 70% the majority of the year, but during the dry season (Northern Hemisphere’s Winter) it can drop as low as 60%. Humidity is naturally higher at night and lower during the day.

Please let me know if there are any questions!

References are in the comments!


r/bluetongueskinks 9h ago

Showcase Such a chunky boy (?)

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52 Upvotes

Got him (guessing male) a month ago and he is still warming up but he is very curious, active and sweet. He is 680 grams at 20 inches (northern)


r/bluetongueskinks 5h ago

Showcase Meet Soup

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10 Upvotes

Just wanted to show off my stinky, grouchy boy. Got him summer of last year when he was about 5 months old. I was going through a difficult time in my life [finishing master's degree, starting first job, family drama, engagement, etc.] and needed a friend.

He loves blueberries, minecraft, and hates his greens lol. Second picture is him back in May and I can't believe how much he's grown in a few short months.

Saving up to get him a decked out PVC enclosure that better fits him. Will be moving sometime next year so might need to wait till then.

But yeah, my sweet baby boi.


r/bluetongueskinks 19h ago

Story Stumpy and Randall

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127 Upvotes

Today I finally figured out my backyard has been home to two skinks for years.

These photos are both from years ago. I have never seen both at the same time and I never really noticed the difference until today when I saw a much smaller skink than I've normally seen around lately plus it had no tail.

First photo is "Stumpy" who I think is female and I believe has dropped her tail multiple times.

Second photo is "Randall" who I think is male, much bigger and has original tail I believe.

Videos of both in the comments to show the difference a little better plus a potential offspring of theirs hiding under an agave.


r/bluetongueskinks 1d ago

Funny Prehensile Tailed Skink

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310 Upvotes

You don't have to eat your salad like that, ma'am.


r/bluetongueskinks 14h ago

Question Update post

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13 Upvotes

Hello everyone! Oneif the things i knew i needed for my enclosure was hidingspots and i just got some home. But i need to kniw if there is any kuke cleaning process before putting them in? I have given the stuff a quick splash under my fauces and that’s it, and i want to hear if there is a deeper cleaning tuing to do beforeputtng in the different stuff.


r/bluetongueskinks 1d ago

Health Update on hiding BTS

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62 Upvotes

(slightly different pic for attention)

I suspect that my skink has a respiratory infection, though I'm not sure how he got it as from what I've read it seems to mainly happen when temp is too cold or humidity is too high, neither of which are a problem for us here in the desert. He's now sneezy, has a slightly crusty eye, and occasional clicking when breathing. I changed out all of his substrate and gave him a soak in warm water, and after I returned him to his enclosure he ate a small amount of raw egg and drank some water. We have a vet appt on Friday, what can I do to make him more comfortable until then?


r/bluetongueskinks 6h ago

Question Eucalyptus

1 Upvotes

Hello! I just bought a shower cleaner and didn't realize the scent was eucalyptus and mint. Would it be safe to still clean my shower with it if my bts enclosure is in my room and my bathroom is attached to my room?


r/bluetongueskinks 10h ago

Question Vivarium upgrade question

1 Upvotes

I am in the UK!

Looking for a new vivarium for my 9 year old dude, his current setup is 180cm long, 60cm tall, 90cm deep. I want to get him longer and deeper tank but all the ones I find are same the size or just huge, lol. What is the "next size up" from 180x60x90?

What sites do you guys recommend?


r/bluetongueskinks 1d ago

Health Following up re: at a loss

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43 Upvotes

Figured I would continue updates here as the vet said it’s a “super bizarre” case and hopefully these updates help future skink owners.

So, brought Sasha to the vet for a 1-week follow up.

I was soaking him in 88 degree distilled water briefly every other day to get the layers of skin off, you would think the stuck shed would come off during these soaks But,

They removed some layers of shed(?) (to me it just looks like his skin is fucking falling off but) I wasn’t in the room when they did it, but I was very surprised to see they took a layer off of his back, which appeared to be fine beforehand (scales underneath do not in fact look fine)

Also removed layers from his legs. It does look better and cleaner without shed everywhere, but the affected areas are a bit raw. I always checked his toes and legs for stuck shed after every shed, so it’s really surprising and confusing to see multiple layers come off. His skin always looked great. I noticed a few weeks ago both of his right elbows looked dry, but it wasn’t anything crazy at all. Literally just looked like slightly dry scales that I was hoping would fix themselves next shed. After that it got worse pretty rapidly

Potentially a word of warning. I’m still not sure if it’s stuck shed or his skin melting off (s/😭)

They also dabbed the affected areas with very diluted betadine and told me to continue that once daily.

They took a culture and blood so we will have bloodwork back in a few days and find out what the pathogen is from the culture next week. Then we can do some targeted antibiotics once we know that. I’m excited for the bloodwork to come back. At least I’ll have more details.

He is in a clean new tank with paper towel substrate, he ate a few pieces of meat dusted in calcium over the week, but im hoping he’ll eat a big meal soon. His eyes also look a bit sunken in. He is still lively though. Most of this is just info to share as a sort of case study. Pray for my boy


r/bluetongueskinks 1d ago

Question Bioactive fly infestation?

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8 Upvotes

I didn’t really know where to post this but in my blue tongue skinks enclosure that I’ve been trying to convert to bioactive appears to have more than just a few of these flys. Would I have to completely replace the soil or could I put traps high above to hopefully kill them off? Are they harmful to my skink? He’s an Indonesian so his tank has high humidity has well.. thank you for reading!


r/bluetongueskinks 2d ago

Question BTS hiding on cool side for days

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155 Upvotes

My Northern BTS (about 12 months old) is normally very social and I see him at least once a day, but he has been staying in the hide on the cool end of his enclosure for about 3-4 days now. He just shed 3 weeks ago, so I don't think he's shedding again already. Humidity in the enclosure is usually around 40%, with an ambient temp of 80F, and basking temp 95-100F. He also didn't want to eat his favorite food (boiled egg). I checked on him under his hide just now and he gave me a small huff.

Is there any cause for concern yet, and if not how long should I give him before I should start worrying?

ETA I've had him for 6 months.


r/bluetongueskinks 1d ago

Health Follow up post to Scooberts tail lump.

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52 Upvotes

Turns out he fell over and broke 2 vertebrae In his tail 💔

He is fine however thankfully. He is being given oral anti-inflammatories to stop the swelling and to reduce pain. I'm gonna do as much as I can to stop I'm from glass surfing and making it worse.

What else can I do to enrich him, He's been pacing a lot and climbing the glass very often (before he went to the vet), I do think this is related to his bung tail hurting. I plan on getting and or even making a 180x60x60 enclosure because the one he's in is 180x30x30, which is too small so that could also be a contributor to the pacing and glass surfing as there isn't a lot of room to roam. The best I can do is change up the arrangement in his enclosure and put paper on the sides of the glass to stop him from seeing his reflection.


r/bluetongueskinks 2d ago

Funny I think I have a dog not a lizard

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628 Upvotes

r/bluetongueskinks 1d ago

Question What are these crawling in my bst's enclosure?

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1 Upvotes

I found these crawling around my bts. I'm freaking out a bit.


r/bluetongueskinks 2d ago

Funny Big baby

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251 Upvotes

Look at my big baby boy in his little soft blanket, such a sweetie 🥺


r/bluetongueskinks 1d ago

Question Temperament and personalities of blue tongued skinks?

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2 Upvotes

r/bluetongueskinks 2d ago

Health At a loss

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15 Upvotes

First off, i took Sasha to the vet last Monday because the scales/skin on two of his legs looked very weird. It looked dry in some areas and looked like it was melting off in other areas. There was a small red spot as well. His front leg also looked swollen. She gave me pain and inflammation meds and an antibiotic but didn’t tell me what it was. She doesnt know. She’s an exotic vet and there’s another at the clinic.

He has a follow up appointment tomorrow but I’m going absolutely crazy because ITS GETTING WORSE. His skin looks so bad and I feel like it’s spreading. It looks like his skin is just falling off. I’ve soaked him multiple days this week and put silver on his wounds, it doesn’t look like stuck shed. He’s about 5 and has never had a problem shedding, this seemingly came out of the blue.

I realized his UV jungle dawn light is about two years old, so now I feel terrible because he hasn’t been getting UV, but his bones seem like. It seems like a physical skin issue and not really related to MBD? Is it possible for MBD to show up in skin first?

Like seriously, why would his foot pad be raw like that?????

He has a new UV light and has been getting calcium dusted food this week.

His basking rock stays at 105 when the lights on (I have temp gun). I also have a temp and humidity tracker in his tank. He hasn’t been getting a cool side and warm side. Warm side stays 83-86 and never drops below 71 at night.

Humidity stays high, it’s always around 80. I wonder if there hasn’t been enough variety in humidity? (Having it dry out a bit then pumping up the humidity).

I just want to know if anyone else with a wild caught indo has had skin issues like this. I’m dying to know and be able to correct whatever’s going wrong. This was hastily written, im happy to answer any questions. I’ve searched in this sub for past posts related to this but couldn’t find any

Edit to add he’s actually been moving around more frequently than usual, but doesn’t use his legs well. It’s like there’s no power behind his movements and I can’t tell if it’s weakness or physically difficult to move due to the inflammation and sore areas. Please help while I wait for the vet appt


r/bluetongueskinks 3d ago

Showcase Lizard Cuddles ❤️🦎

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54 Upvotes

The most wholesome kind of cuddles. 🥹 We’ve come very far in our short time together.


r/bluetongueskinks 3d ago

Identified - Merauke Skink Identification Help!

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46 Upvotes

Hi there! I just came in possession of a BTS via a rehome from a coworker- and I am VERY new to their care. I’ve owned other reptiles before (Leopard geckos, ball pythons, Cornsnakes). The only thing- not even my coworker is sure whether or not she’s an Indonesian or an Australian and from my research I know their needs are very very different! She has a MASSIVE enclosure but I am looking to revamp her environment, heating and humidity…(or lack thereof) needs. Right now she’s on a substrate of coconut bark and has a few large hides and a large water bowl. Anyways… any help and tips for a rookie would be amazing.
Anyways… meet Tarot!


r/bluetongueskinks 2d ago

Health Eradicness and tail lump.

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8 Upvotes

My son is 8 months old and recently acting very erratic. Glass surfing. Running around his enclosure, he spends about 70% of his time doing that.

I get him out for about 10 minutes to walk around the house. But he ends up going back to glass surfing again, I try to enrich him with little balls he can push around, woodies he can chase. Nothing seems to interest him. He's been eating less as well. I can't take him outside because we have 2 dogs and he can easily escape. I'm planning on making a playpen for him so he can run around in that and I can watch over him safely without the dogs or him getting under furniture.

I haven't noticed any bubbles coming from his nose or mouth, wheezing sounds, no lethargy. No star gazing and mouth opening, excess saliva etc etc.

He has a UV light and a heat lamp. A log he can hide under, a rock he can hide under, deep substrate he can dig in, a few logs he can climb.

But recently he's been acting very erratic everyday

And then noticed this lump on his tail. Could he possibly have fallen over from the glass surfing and fractured his tail? Or is this an infection causing pain?

I'm going to take him to the vet tomorrow to get him professionally checked of course.


r/bluetongueskinks 3d ago

Question Rehoming my Skink

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51 Upvotes

Would anyone be interested/ able to help rehome my lil guy. He's 5-6 years old and perfectly healthy as far as I know, but I don't have the time or resources to care for him like he deserves. I'm willing to part with him for free to a good home. I live in Duluth and the local reptile guy told me skinks don't need a lot and my set up definitely has more than anything in his store. But some things have come to light about his practices and seeing all these amazing enclosures on this sub have me feeling bad for my lizard.


r/bluetongueskinks 3d ago

Showcase Hard to concentrate at work while being monitored by a sausage

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215 Upvotes

r/bluetongueskinks 3d ago

Showcase Handling going well with Slushy ☺️

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62 Upvotes

I've had Slushy for a little while now and essentially have him space for most of it. After speaking with the breeder about how I can move forward with handling, they told me to pretty much just pick them up and support them, and I have to say, it's working like a treat!

He still poops on me occasionally but, at this point I'm used to it 😅

I've been making sure to give him yummy treats when I go to pick him up and put him back, so I think I've been sufficiently sweetening the deal haha. He's getting so brave, I can't wait to gain his trust even more ❤️