I am designing an aquaponics system for my basement. I am thinking about one large fish tank approximately 3500 gallons. The grow beds will be above the fish tank and consist of twelve 45 gallon beds. Assuming after adding the grow medium, water volume will be reduced to about 35 gallons each.
This means on a one pump system, the most water that will be removed from the fish tank is 420 (12 x 35) gallons. I am thinking that this will have a nominal effect on the fish in the tank so no sump tank should be necessary. Is my reasoning sound?