Well after shattering my first sump, finally had to time to build a new sump to replace it. Thanks to elmer's for having 1 125g tank left on sale.. lol... Did a few upgrades, used 1/4" glass bulk heads this time, went with a over-under-over betweeen 1st & 2nd compartments, then a under and over to 3rd compartment for return water. enlarged the middle compartment for my new algea scrubber design (now in the tank no water splashing). Added a skimmer till tank recovers from marine velvet and cyno out break.