Sorry about the strange title was hoping to attract some attention! Anyway I have around a 50 gallon tank just over with 2 black moors 1 weather loach and my pride and joy Brains (red cap), and was looking to get some fish that are not in the gold fish family that can take the coldwater and wont attack my fancys. also i have a tank with mainly artificial plants and was hoping to replace them with the real thing could anyone tell me the best to get?