"Mark Cooper" wrote in message
...
I have a 55 gal. FOWLR, and am looking at building a sump from a 10
gal.
tank I have. This is about as big as will fit under the stand I
have. I
plan on using a Mag 7 for a return pump, which at 4' of head is 480
gph.

I would like to have a small refugium built into this, but would
this be
too much current? Maybe just live rock in the sump?


Thanks,
Mark


I partitioned off a ten gallon to use as a sump last year. One end
has a baffle for the drain. It's about 4-5" from the end and a couple
inches short of the top frame. The middle of the tank has a DSB, and
several hermit crabs that are too nasty to be trusted in the display
tank. The other end of the sump has a bubble trap, with the three
sheets of acrylic placed just far enough from the end to allow a Mag9
to be placed in the space for the return. The amount of current
created by the Mag doesn't seem to bother the hermits, nor the macro
growing in the fuge.