This is a specific conversation about Reptile setup — getting the environment right — ask about yours and get one honest answer for your exact situation.
inparticular.ai
Reptile welfare is almost entirely determined by getting the environment right — temperature gradient, UV lighting, humidity, and substrate all need to match what that animal would experience in the wild. Green iguanas are a perfect example: get the humidity wrong and you'll see shedding problems, respiratory issues, and chronic stress before you ever notice anything obviously wrong. What age is your iguana, and what are you specifically looking to upgrade or fix in the current setup?
He's about 4 years old, fully grown now — around 5 feet. I've had him in a wooden vivarium but I'm upgrading to a larger custom build. The humidity has always been a struggle, it drops too low and he's had a couple of bad sheds. I want to get it properly sorted this time.
inparticular.ai
Good that you're addressing it properly — bad sheds in iguanas are almost always a humidity failure, and at 4 years old with a large body mass, he needs consistent 70–80% RH throughout the enclosure, not just occasional spikes. A wooden build will help retain humidity better than glass, but you'll still need an active system to maintain it reliably. Are you currently using any fogger or misting system, or starting from scratch on that side of things?
Starting from scratch really. I had a cheap fogger that kept breaking and I never trusted it. I want something reliable this time that I can set and actually depend on.
inparticular.ai
For a large adult iguana enclosure the Zoo Med ReptiFogger Terrarium Humidifier is the right call. It's reliable, widely used for large tropical setups, connects to a standard hygrostat so you can automate it properly, and the output is strong enough to maintain humidity in a big wooden build without running constantly. Pair it with a digital hygrostat — the Inkbird IHC-200 is solid and widely available — and you set your target range, the fogger runs only when needed, and you stop babysitting it. That combination will give you stable 70–80% without the guesswork.
That sounds like exactly what I need. Where does the fogger go in the enclosure — high up or low down?
inparticular.ai
Position the fogger outlet at mid to upper height on one end of the enclosure — you want the mist to drift down and across rather than pooling at the bottom, which causes substrate to stay wet and can lead to bacterial issues. Keep it away from the basking zone so it's not evaporating off immediately. The cool end works well. Make sure there's adequate ventilation at the top of the build too — you want humidity retained, not stagnant air, which is its own respiratory risk.
Really helpful, thank you. I'll get the ReptiFogger and the Inkbird sorted before the move.
inparticular.ai
You're set up to do this properly. One last thing worth checking before the move — confirm your UVB tube covers at least two thirds of the enclosure length. Adults need strong UVB exposure, and it's often the thing people under-invest in once they've focused on humidity. A T5 HO 10.0 tube at that size is the minimum. Good luck with the build — sounds like he's going to have a much better setup.
