i have 2 cali rays in a 125 and they are doing great, come right out and eat out of your hands, later i might have to go bigger but for now the tank is big enough...one is about 7" and the other is 5 or 6" i had a blue ribbon tail and these are way better, ive been doing some reserch and i see they like the water cold, does anyone know what will happen if the water is warmer?