Underwoodisauus milii


Underwoodisaurus milii also know as Australian Barking Geckos are a smaller mid-size gecko from Southern Australia. They are called Barking Geckos because they will bark when upset or startled. They are a very hardy species that are found in a variety of different areas in Australia. 



Barking Geckos are a medium sized gecko. When they hatch out, they are no bigger than 2 inches in total length and weigh only a few grams. By the time they are full grown, they are 3.5-4 inches in total length and weigh between 20-25 grams. These geckos are very hardy when kept correctly and can live around 10-15 years with the proper care and set up.



Barking Geckos will eat a variety of bugs including: crickets, dubia roaches and black soldier fly larvae. We dust all prey items in Calcium D3 supplement every other feeding. We recommend Minerall because it is a human grade calcium based supplement with over 50 trace minerals that help with growth and bone density. Along with that, we put a vitamin supplement on the insects every 2 weeks. Barking Geckos are nocturnal so you will most likely not witness them eating their insects. We usually give the geckos about 8-10 insects every 2-3 days. Be sure to put the insects in at night when the gecko is most active. Check the enclosure in the morning and remove any uneaten bugs. Alongside feeding your gecko, your insects should be gut loaded before you feed them. We recommend feeding roaches and crickets PIG 12-24hrs before feeding your reptile so that the insects gut is loaded when you feed them off. We feed our crickets a mix of dark leafy greens and veggies every day, but feed the gutload to the crickets or dubias the day of feeding so that their gut is full of good nutrition. 






Barking Geckos require 50-60% humidity. If you keep your gecko in a glass terrarium, you will probably need to mist your gecko once a day to keep up humidity. Tubs or PVC enclosures will help maintain humidity better, but some people do not like the look of a these types of enclosures. Typically in tubs or PVC enclosures you will only have to mist every few days to maintain the correct humidity levels whereas tanks may need misted daily. Be sure to have a good digital hygrometer in your enclosure so that you can monitor the humidity and make sure it never gets too dry in the enclosure. The tank shouldn't remain wet all day long so if you mist and the tank is still wet in the evening, hold off misting until the water on the walls of the enclosure have evaporated.



All geckos should be provided with a small, shallow water dish. Although these geckos do not usually drink from bowls it is always good to offer water in case the gecko gets thirsty. We always recommend putting a small bio ball in the water dish so that any crickets that find their way into the water bowl are able to get out. Be sure the water dish is shallow enough so that the gecko can stand in it without submerging their head. If the water is too deep, there is a potential of the gecko drowning. When using water, be sure to either use spring water or tap water with de-chlorinator added to it. DO NOT use distilled water. Distilled water removes trace minerals from the water which are essential to keeping your gecko healthy. 



Barking Geckos are a smaller mid-sized gecko and require a 10-15 gallon tank for their entire life. We prefer to keep them in 15 gallon tanks or equivalent sized tubs to give them the added space. Tubs will make the gecko feel more secure, but you can also cover three sides of a tank to achieve the exact same effect. These geckos are best kept singularly. We keep ours separated the majority of the year and only put them together for breeding purposes. If you do decide to try to cohab your geckos, be sure it's either a pair or two females. Males will fight and should never be kept together. When cohabbing, you want to keep an eye on both geckos. If you notice injury or weight loss in either gecko, separate immediately. We advise keeping you geckos separate so that no issues occur. 



We use a mixture of peat moss and cypress bedding throughout the cage. If you're having issues with humidity, you can add sphagnum moss to the mixture so that the bedding holds more humidity. We recommend stirring up your bedding once a week to make sure no mold growth occurs in your enclosure. We always provide geckos of all ages a moist hide. The moist hide should have a handful of sphagnum moss to help aid in shedding. These geckos also do great in bioactive enclosures. If you go bioactive, you'll want to make sure you have a good drainage layer so that you never accumulate standing water. Because these guys are insectivores, they may try to eat your isopods. We recommend sticking with dwarf species of isopods so that your gecko doesn't deplete the isopod colony in your enclosure. 





Barking Geckos should be provided with three hides, one moist, one on the cold side, and one on the warm side. Our favorite hides for Barking Geckos are Half Cut coconuts. They work for babies and adults and hold up well to being misted. We recommend putting sphagnum moss inside the moist hide to aid in shedding. We also use fabric leaves from craft stores for cover as well. Be sure that any foliage from the craft store is soaked in warm water for 15 minutes to get off any residual dye before putting it into the enclosure. Place leaves between hides to provide the gecko with cover so that it feels safe and secure in its habitat. Be sure to rinse off any new decor in case it has any chemical residue on it. Alongside those items, you can also provide these geckos with rocky outcrops. Be sure the rocks do not have any jagged edges. You don't want your gecko getting injured on sharp rocks. Barking Geckos can be kept with live plants. Pothos work as a great plant for coverage in their enclosures. You can get your live plants from any hardware store or nursery, but you want to make sure to repot them in organic soil and wash off the leaves so no pesticides or fertilizer remain on the plants. Live plants can be naturally fertilized once a month with mealworm castings. Most commercial fertilizers are harmful to your reptile, so do not use any fertilizers until you confirm that they will not harm your reptiles.



Barking Geckos like to be kept in the mid 70s to mid 80s. You want the cool side of the tank to be in the low mid 70s and the warmer side to be around 82-85 degrees. This is easily achieved with either a heat mat or 25watt ceramic heat emitter. Be sure that any heat source is kept on a thermostat so that the enclosure never gets too hot. We recommend having a digital thermometer in the enclosure in order to monitor temperatures. Another great tool is to get an Infrared Temperature Gun so that you can scan different areas in your enclosure to be sure they are the correct temperature. These geckos will self regulate their body temperature by moving between the cool and warm zones of the tank, so making sure the tank has a nice heat gradient is essential to a healthy, happy gecko. These geckos do not need UVB and will rarely come out to use it. If you have live plants in the enclosure, then a Full Spectrum Light will need to be provided for your plants. This will not hurt your gecko and will have to be used in order to give your plants the proper lighting to grow. 



Barking Geckos are somewhat flighty and shy. They are not super quick but will not enjoy being handled frequently. We consider them a hands off species and only handle them when cleaning the enclosure or doing health checks. We recommend keeping handling down to a minimum and only getting them out once a week to keep stress to a minimum. 



We recommend spot cleaning the cage at least once a week and doing a full bedding change and tank cleaning every 6-8 weeks. Every week look for poo, dead insects, shed, and food smears on the ground or glass and remove it from the enclosure. When cleaning the entire cage out, first remove all bedding and wipe down all surfaces with hot soapy water. Put the decor into a bucket with warm water & a capful of vinegar. Let it soak for 15 minutes & then rinse off the items & place them in bucket of hot water. Once the decor has soaked for 15 minutes, rinse them off again & then they are ready to go back into the tank once cleaning is complete. Then you want to be sure to disinfect the tank with either vinegar or a commercial reptile cleaning product. Once you have disinfected the tank, thoroughly rinse your tank out with hot water until it is free of any cleaning products. Let everything air dry before putting it back into the enclosure. When cleaning to enclosure put the reptile in either a deli cup or another small contained space. Do not put the reptile back into the enclosure until cleaning is complete.



☐ 10-15 gallon tank or equivalent PVC enclosure or Tub
☐ Crickets, Black Soldier Fly Larvae or Dubia Roaches
☐ Ceramic Escape Proof Bowl for roaches
☐ Mister Bottle or Spray Bottle
☐ Dechlorinator or Spring Water
☐ Fake silk or plastic plants
☐ Moist Hide
☐ Dry Hide
☐ Cypress Bedding
☐ Peat Moss 
☐ Sphagnum moss
☐ Digital Thermometer & Hygrometer
☐ Heat mat with thermostat