Description:It's a 10 gallon tank. Has a Penguin 100 w/ Bio Wheel and I have a heater in there in case the fish get a little cold. I have two velvet swordtails, two rainbow sharks, and I can't remember the names of the other fish because I just got them. I have one of those Python no-spill kits and a overhead light. I picked blue gravel because it is my favorite color.