Hi, my little sister is wanting to get the zoo med tree frog kit and put 2 green trees in there. It is the 12x12x18 and I think it is too smale for two adults. She on the other hand says that she read a caresheet that said that 2 adults can live in a 10 gallon. I have read that 10 for 1 is okay but you should have an extra 5 gallons for every extra frog you have. So If anybody has experiance with these frogs then please help.