reverse sump?

[SeaHorse_Fanatic]

I've done one before. It works fine as long as you have a relatively low output pump & maybe have a second emergency drain drilled into the sump in case of clogging.

I used a 20g sump, refugium over a 65g DT. Maxijet to get water up & gravity feed back down into the DT. Works great for releasing LIVE mysis & pods from the refugium section back into the DT.

Ran it this way for over a year, no problems.

Anthony