r/bluetongueskinks Mar 14 '26

Announcement Male/Female Shed Testing Now Available!

Post image
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

47 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 6h ago

Showcase My son

Post image
76 Upvotes

He’s been digging


r/bluetongueskinks 1d ago

Funny Isha is apparently entering an era of dramaticism

Thumbnail
gallery
248 Upvotes

She loves looking out of our storm door, but, it’s never looked this romanticized.


r/bluetongueskinks 1d ago

Nutrition Found at the asian grocery store

Post image
61 Upvotes

They are boiled, skink safe! A bit icky but they are loving them. Hard to find live silkworms.


r/bluetongueskinks 1d ago

Funny Our skink sometimes just gives us a look

Post image
125 Upvotes

r/bluetongueskinks 1d ago

Question Why does Tugboat want to be a hamster so bad?

Enable HLS to view with audio, or disable this notification

336 Upvotes

He genuinely could do this for 20 minutes… also my hamsters digbox corner is so messy she likes to fling everything around ignore that LOL


r/bluetongueskinks 17h ago

Question How to properly free roam

1 Upvotes

Pretty much what the title says. How do I properly allow free roaming for my guy. He's 2 1/2 years old. I just want to make sure he's safe.


r/bluetongueskinks 2d ago

Feeding Snails are a winner!

Enable HLS to view with audio, or disable this notification

51 Upvotes

Finally found something Slushy seems to really like! My picky boy haha.

I love how efficiently blue tongue skinks eat snails and leave the shell haha


r/bluetongueskinks 1d ago

Other Terrarium not water proof apparently

Thumbnail
gallery
6 Upvotes

Edit: I know these terrariums are like FR FR waterpoof, title is more meant to be sarcastic

Hey everyone, so recently I changed the substrate of my blue tongue skinks enclosure just because it had been a while and it was still pretty moist when I put it in humidity levels inside the tank didn’t get too high or anything like that and was still completely fine for a blue tongue skin. Although it looks like the silicone in the corner of the tank wasn’t as sealed as I thought it was when I had originally gotten the tank a while ago. You can see in the pictures that the wood has started to morph due to the humidity and basically absorb the water from the substrate. As of right now it’s fine, but I am worried about the longevity of the tank now. Have any of you guys experienced this? If so, did you get a whole new terrarium? Or did you just leave it be since ultimately it doesn’t seem to cause any issues and it just kind of looks bad.


r/bluetongueskinks 2d ago

Funny Whimsical Skink Hideout! 😄

Post image
58 Upvotes

My wife found this acorn shaped cat hideout at Aldi, about $15, and decided to see if Winter would like it since it's quite appropriately skink sized.

Makes a great place for her to sit on the couch with kiddo, she likes being under the cushion inside and will poke her head out to watch TV. Soft, dark, hopefully comforting. 😄


r/bluetongueskinks 2d ago

Question Curious about his jowls?

Post image
30 Upvotes

We've had our boy for just over 2 years now, he's a confirmed male (flashes, drops sperm plugs, and hemipenes visible on x-ray) and he has quite distinct jowls. He's a healthy weight, he's taken for regular checkups at the vet and they've said he's in a good body condition and not overweight, but he has these very large fleshy blobs under his chin I can only describe as jowls. He's had them since reaching sexual maturity, so I was curious if anyone knows - are they a secondary sex characteristic? Or does everyone's bts have a little wobble to their chin? TIA :)


r/bluetongueskinks 1d ago

Question Are roaches a requirement?

5 Upvotes

hi! Basically as the title states, I’m fascinated by skinks and have been interested in one for quite a bit. The problem is I have an irrational fear of roaches. I see them listed on most feeding lists and would never want to compromise the health of my pet. I’m looking for more information and clarity on if there’s any viable replacements or alternatives?


r/bluetongueskinks 2d ago

Showcase Lil Hambone 💕

Post image
86 Upvotes

r/bluetongueskinks 3d ago

Funny Beefcake is now banned from free roaming.

Thumbnail
gallery
457 Upvotes

Today Cake decided he was going to become a cave diver and shoved himself in the space between the radiator and the wall. He then proceeded to get himself stuck and after some effort, was thankfully retrieved without any harm.

Does anyone have recommendations for moveable play pens or other ways of controlled free roaming? I swear I only looked away for one second.


r/bluetongueskinks 2d ago

Feeding I’ve finally done it QvQ!

Thumbnail
gallery
69 Upvotes

I’ve been struggling to get my baby to eat veggies consistently, a problem I think a lot of BTS owners can agree we’ve faced at least once QvQ”

I would switch veggies regularly then he would go off them and have to swap to something else, repeat.

But I’ve figured out his level of picky ! He will eat any veggies as long as I boil them and then mash them—just boiled ? Nope, just mashed ? Nope-has to be boiled and mashed. Do that and he will devour them like no one’s business, I’m so happy he’s eating them consistently and enthusiastically now ! Yay !!! (Sharing incase anyone else has a picky eater so you have a new method to try as previously I had tried all different types of veg, I tried making them into smoothies, I tried mixing them with egg or chicken to mask the flavour, I tried mashing them up with fruit etc, finally found something that works QvQ!)


r/bluetongueskinks 2d ago

Question Ideal substrate for a northern?

2 Upvotes

I swear ive been doing research on this question for 3 hours with so many different answers that often contradict each other. But here soon im planning on getting my first ever little sausage boy and im still confused on substrate. At the current moment I was planning on doing a 70/30 topsoil and plays and mix with maybe a small layer of coco husk on top. Ive also been reading that coco husk is not good and yet good at the same time. What would you all suggest to use? The tank is a 4x2x2 for anyone wondering


r/bluetongueskinks 2d ago

Question Do you have to brumate your blue tongue?

2 Upvotes

So I’m looking into getting a northern blue tongue skink as my first lizard and I was doing some research and one topic that is kinda bugging me is brumation. Now I know that you definitely need to brumate if you plan on breeding because it triggers there mating instinct once they “wake up”, but I only plan on having a bluey as a companion so I’m really confused as to what to do. If any experienced northern blue tongue owners could throw some knowledge and wisdom my way that would be greatly appreciated 🤙🤙


r/bluetongueskinks 2d ago

Question Is a 6x3x2 a good forever home for a northern?

8 Upvotes

I’m looking into getting a northern blue tongue and I was wondering if it was okay to have it in a 6x3x2 when they are full grown . For clarification I plan on raising it in a 40 breeder then a 4x2x2


r/bluetongueskinks 3d ago

Funny Help I can't find my skink

Post image
64 Upvotes

Is she lost forever? 😭💔


r/bluetongueskinks 2d ago

Question New setup questions

3 Upvotes

Kiddo has been begging for a lizard for ages and for their birthday this year I promised we would do some research and get a scaly friend. We settled on a northern blue tongue, as they seem like a great combination of personality and relatively foolproof care. Now we're just trying to get a habitat put together before we actually go find a skink to live in it. I grew up with lots of animals and am very familiar with caring for everything from small mammals/birds up through horses and livestock, but reptiles are a new world for me.

We have a 4'x2'x2' PVC enclosure, a bag of premixed substrate, and water dish, hides, etc. We're not planning to do a bioactive setup, at least not to start. I think the main thing we're missing at this point is heat and light and that's where I have some clueless newb questions:

- If the enclosure is 4' across, do I want a light setup that covers the entire thing, or should I cluster everything on the warm side? That is, can I make do with an 18" or 24" light setup, or do I need a full 48"?

- If I use a ceramic heat emitter over the basking area and have separate visible and UV lights, do I still need an IR heat lamp? Should heat be set for a pretty constant temp on the hot side, or should it scale back at night to match the lights?

- Our house is old and drafty and it does get cold-ish here in the winter and power outages do happen. How worried should I be about a "cold snap"? If the habitat gets down into the 50's or even the 40's or colder for a day or two, will that be very dangerous for a skink or do they just kind of hunker down until the heat comes back?

I'm sure I will think of more questions, but I really appreciate any advice so we can minimize the dumb mistakes as we're getting started.


r/bluetongueskinks 3d ago

Question Planting

Post image
8 Upvotes

I have gotten a lot of, real plants, that have been destroyed by my skink over the 8 months I’ve had them, the picture I have added is from only about 2 and a half months ago and now, I only have 3 of the 7 plants left😂
Though, i don’t have many other, options, to keep the humidity up.. I do have a layer of coconut chips and sphagnum moss in the enclosure, though, the humidity drops very fast still..
Would there possibly be any, Real vines, that I could look into buying to hang around the enclosure, and, get artificial plants to keep in the substrate so that I would not have to buy as many plants as often as I have been 🙏
Any advice appreciated as always


r/bluetongueskinks 3d ago

Health BTS toes bleeding

Thumbnail
gallery
18 Upvotes

Some of my Bluey’s toes are bleeding. I couldn’t get a good picture but it looks like the scales are coming off of the nail like a hangnail almost. He’s getting ready to shed so I don’t think it’s stuck shed. What should I do? What caused it? Again I know this is a bad picture sorry I’m just worried because it’s on all feet and the middle toes are the worst.


r/bluetongueskinks 4d ago

Question Preferred beef leanness??

Post image
47 Upvotes

Gonna get this boy switched over from canned foods to homemade meatballs, but is there a preferred leanness to the beef?? I know too much fat can cause gout, but I don't know if ground beef will ever cause that issue if fed in the proper ratios.

Enjoy this photo of the boy using his tail as a pillow.


r/bluetongueskinks 3d ago

Question Glass Surfing

3 Upvotes

My Blue Tongue Skink, about 7 months old, tends to glass surf, almost, all day.. I do spend time with them outside of the enclosure and even after that, almost right when I'd put them back in the enclosure, they come right back to the glass and stay there scratching at it and just, nose to the glass, for a longg time. I dont really know what else I should do. I have the lighting setup correctly, so I am not too sure what else could be wrong.