Have no intention on selling any till they grow alittle more. Then theres a chance I may let a couple go. As for feeding, all they get are golds. Maybe a few rosies but that's it. Haven't started with dry foods yet cause I'm trying to get them fat first. They get a lot of attention and natural sun light. May explain the colors. What ever it is its working. The plant is artificial. Got it from a lfs. Actually its a pond plant. Work out great for the lil Tems. I'm looking for more wilds if anyone knows where to point me. Thanx again for all the comments.