My girlfriend and I are moving into a house in June, and I decided to get a reptile once we move in. I've kept lizards in the past, but it's been a while, so I figured crested geckos would be a good choice since I'm a little rusty, due to their relatively simple needs, but also because I've read that they are fairly easy to breed as well. I wanted to breed lizards back when I kept them, but I never got around to it, and I figure now is a good a time as any. I figured I would purchase a male and a female, and keep them in a 20 gallon tank. I have a few old 10 gallons laying around that I figured would work well to acclimate them before introducing them in the same enclosure as well as to keep hatchlings in, but I don't know if 20 gallons will be enough space for two geckos. Also, I don't know if a pair can be raised and bred together, or if a mate needs to be introduced when trying to breed. If anyone could answer my questions and give me some advice, it would be much appreciated. Thanks.