Rishu's Really Ridiculous Reef: a 96x20x20 penny tank build

[rishu_pepper]

Originally Posted by Wretch

Brian now that I see the tank up and running and the sump full what happens when the power goes out? will the sump be able to hold all the water that drains from the main tank? Looks good by the way. Cant wait to see the lights up.

Joe, I ran a couple of tests by turning off the return pump. The sump has abundant volume to hold excess back-siphon water, which is not a lot since the check valve stops much of it anyway. At the moment I'd venture to say there is about 1/3 of the sump being empty. Still figuring out where to draw the line as far as max/min water level is for my ATO.