O orteh22 Feeder Fish MFK Member Oct 2, 2011 53 1 6 lakewood May 18, 2012 #1 is a xp3 and 20gallon sump efficient filtration for a 135 gallon tank.
M markado Feeder Fish MFK Member Jul 13, 2010 369 0 0 39 Singapore May 20, 2012 #2 depends on what you keep in your tank as well.
