I bought a pair of crested geckos a week ago. 1 male and 1 female. I have them in a 18x 18x 24x enclosure with a divider in the middle to keep them separated(temporarily). They are both a bit too small at 24 grams each. I heard that females are supposed to be at least 35 grams before breeding so I'm waiting until then. Before I could separate them the male nipped at the female. I think it's a mating thing, and it was only at night. It was very light, and approximately once every 30-60 minutes. I'll show a picture of the enclosure in a comment or something. I have a 13 watt fluorescent bulb. It doesn't give off any significant heat and the cage is anywhere from 70-75 degrees during the day. I keep the humidity at 70%, but sometimes it gets into the 80s on accident. I use distilled water and mist the enclosure at least 3 times a day. I feed them a watermelon flavored mix who's brand escapes me. I'll post anything I miss in a comment as I'm not currently at my house. I change it every night and feed them a single scoop each. They haven't been touching their food. I fed them outside the cage a few times, but I'm going to stop so they hopefully are forced into eating inside their cage. If any of this sounds bad please let me know. I might be missing some details, but I think I covered everything important.