Didn't know firefish were jumpers...I don't have a cover on my aquapod either. I know two cats at my house would be very happy if he jumped out. If you ever get a cover for your pod Mark, let me know what you did and I might copy you. I just don't want to lose any light. Also Mark, I have a couple frags that need a good healing. Think I could put them in your frag tank to heal up?