What exactly is the purpose of a Sump? Why do some systems have them and some not?
Current Aquaponics System 11 Gold Fish Aquarium = Custom 90 Gallon Raised Pond on casters Flower bed = Custom 4' x 8' Flood Table (Bell Siphon) Bio Filter = 6 Gallon Polypropylene Tote with Hydroton (Bell Siphon)
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