I recently added a Mandarin to my 90g and she is just thriving....nice and fat!! I have a healthy pod population right now and was wondering what I need to do to keep it that way. I have >90lbs of LR with some small rubble areas but was wondering if I need to "feed" the pods or add new ones to keep the population healthy and reproducing? I do not have a fuge and have no room in my sump to add one right now.