I have alot of solids building up, feeding rainbow trout heavily for growth and so I can get all grobeds incorporated into system (long story, if you want it, ask) Currently 3 of 5 grobeds are planted, whole system is healthy right now. Anyway lots of solid waste/fish food at bottom of 2 250 gallon fish tanks with rainbow trout. Planning on shop vaccing the solids out. Thought I would setup a mi…