When I went to feed the gramma today, I couldn't find it for the life of me. After about 5 minutes of searching in the rocks of the DT and a quick check of the sump tanks in case he went through the plumbing, I decided I should look in the overflow box. Sure enough, it was swimming happily around the standpipes. Right now the overflow is open, anyone have any suggestions as to what the best thing to add is? I would like to stay away of acrylic teeth if possible.