stiggy614
Member
I have a 20 gallon all glass already. Would that be a good size for a sump on a 75 gallon Saltwater tank?
Sump size all depends on what you want to put in there. As long as you have enough space for your equipment, you're good to go. A refugium should be 10% or more of the tank's volume.lew2000 said:20g might be to small for a 75g. Usually the rule of thumb for sump size is 50% or close to the volume of the display tank. Better to be on the + side of the main tank. O f course depends on dimensions of stand and what else will be underneath.