Did you mean RTC in the 3rd part? Also I want to buy a small RTC then when it gets to 2ft (3ft max) sell it on to someone with a bigger tank. The tank will hopefully be 36" wide not 24". Think my idea is okey to get one for ahyle then when it grows too big sell it? I want a RTC as I find them facinating and really like their colours. I also like how they are quite intelligent.