S ScottyNorq AC Members Jul 19, 2007 306 0 0 43 Dec 5, 2007 #1 Im upgrading my oscar tank to a 72 gallon. Do I need an overflow? What is it used for?
Mgamer20o0 BobsTropicalPlants.com Staff member Jun 4, 2003 31,221 19 89 www.bobstropicalplants.com Dec 5, 2007 #2 depends. often used for sumps. if your going to run reg filters such as hobs or canisters then get one with out a over flow.
depends. often used for sumps. if your going to run reg filters such as hobs or canisters then get one with out a over flow.
