gonna put an aprox 18 inch south american lungfish in bottom. probly a couple bichirs and a catfish. I honestly thinking a snake would escape. Or ima have to figure out a better way to secure the two glass doors on it. i was thinking some kind of lizard from south america. I havent had a reptile in long time. Im figureing the lizard needs to be atleast ten inch min size prefer it grows bigger due to the size of the setup