S superman Fish Addict Joined Mar 28, 2003 Messages 709 Reaction score 0 Location Olathe, KS Nov 14, 2005 #16 A sump is an area that is mainly there to place equipment like heater(s) skimmers, filter media, and even a refugium. It's secondary purpose is to add to the main tank's water volume.
A sump is an area that is mainly there to place equipment like heater(s) skimmers, filter media, and even a refugium. It's secondary purpose is to add to the main tank's water volume.