Hello, I am thinking of setting up a 250 gallon cold water Rubescens tank. I would like to know as much as I can about them like temp, lighting, personalities, diet. I would also like to know how many I could keep in a tank this big, and where I would buy them. I know that this species schools when young but can they live together peacefully as adults too? I think that O. Rubescens is a very interesting animal and I would like to know more about them.