plumbing is all done. tank is still filling up
water comes in on the far right of the sump. have a euro reef skimmer in there and will probably have rock rubble in there.
have a Rio hyperflow 32 return pump (1920GPH) which is split(both sides have ball valves). one side goes back to the tank and the other side feeds into the 30 gallon refugium (on the far left of the stand)..... refugium is drilled and will overflow back into the sump.