I am currently working on trying to convince my husband that we need to build a breeding pond for the stingrays, but for the time being I am interested in breeding food for these guys. They already have a huge diet consisting of many different things, but this is costing me a arm and leg. I am wondering what I can breed to help on my pocket book. I usually feed them for 4 days in a room and then take a 2 day break.