I'm new around here. So id like to say Hi everyone.! Been browsing for a little while but never commented. I'm about to start a Viv. Everyone's on here look awsome and inspired me. Lots of helpful info. I'm looking to get some d. Azureus. Would a 29 gallon aquarium. 30"x12"x18" or a exoterra 18"x18"x18" work better. I kinda like to exoterra idea Alittle more and it would only cost a extra couple dollars. How many mature azureus could I keep in this? A pair? Or a trio or more. Thanks and I'm sure ill have more questions sometime.