I WANT TO KEEP LARGE # S ALIVE FOR FEEDING TO MY SEA HOSES AND ALSO HOPE TO PROPOGATE THEM IF POSSIBLE I HAVE BEEN USING A 5 GAL BUCKET WITH RO/DI WATER AT 72 ' WITH A SMALL AIR OPERATED FILTER FEEDING SINKING MARINE FISH PELLETS AS FOOD WITH HUGE LOSSES WHAT AM I DOING WRONG