I have an existing sump in the basement for my 150g tank. For various reasons I needed to put the sump on the top of my shelf. I'd like to add a refugium BELOW the sump, however, I'm not really sure how to do that since I can't figure out how to balance the inflow (e.g. an overflow or siphon in the sump) with the outflow (e.g. a pump from the refugium back into the sump), of course while keeping the water level in the refugium constant and not overflowing or emptying it. Note that it really wouldn't be easy or desirable for me to re-route the return from the display tank....
Has anyone successfully done something like that? Any diagrams and/or pictures of the details that you'd be willing to share?
Has anyone successfully done something like that? Any diagrams and/or pictures of the details that you'd be willing to share?