Post ideas here on making a nano cube or eclipse into a sump

[cherubfish pair]

This could be a sump and with temporary configurations when needed it could also be a quarantine/hospital tank/refugium/live food keeper. Who knows... the possibilities are endless.

[sarduci]

Dude, that's an expensive sump.....

Have the drain come down into the main area, then overflow into chamber 1/2/3 then three returns up to your tank and not the main chamber.

You'd have to lose the hood that way. Might be a good way to do a slow flow fuge. I wouldn't try and pump much through it turnover wise without modding the strainer/overflow design.