OP OP P PERCY Fish Crazy Joined Mar 11, 2012 Messages 238 Reaction score 0 Jun 5, 2012 #16 Do these not require a sump though? If only I had known before buying bog wood and sand etc
ainsy Fish Addict Joined Dec 13, 2011 Messages 771 Reaction score 0 Location Lancashire, UK Jun 5, 2012 #17 The 850? No - pump in tank - into skimmer - overflow back into tank