Wanted to follow up to say – that I only added the Kellogi’s a week and a half ago. By the second day that I fed them – they were eating out of their feeding station. I’m wondering if my tank is going to be too crowded. And now when hearing about not being able to mix species, I’m wondering if I should return the Kellogi’s and just order the Sunbursts. I would feel so bad giving them back because they seem to be so happy and active.