I have 6 Cardinals! They seem to be doing great. They are schooling and happy. They mostly hang out at the bottom of the tank and when feeding time rolls around they won't come to the top they just wait for the food to come to them. Anyway, I was wondering if this is normal. I know they are "supposed" to be middle to top. They have been in my tank about a week so maybe they are just getting adjusted to their new home? Just thought I would ask.