I am designing my first reef sump and I'm wanting to include an algae scrubber. Can you just attach mesh on the last over baffle that runs into a low return section and light it there? I have considered another situation with the scrubber flow run by the tank overflow, but I doubt it will have enough to run over 7", which with 100 in^2 (one side lit up) makes it fairly long.
I have a 29 gallon and am building a 29 gallon sump. I'm trying to build as large of a refugium as possible so that I can use it for coral propagation, breeding, etc.