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I have a 40 breeder and I hate how my frag rack is bulky and takes up space. I'm most likely going to let gravity do its thing, and just go from display tank to my 20g frag tank then overflow down to the sump. What GPH internal overflow would I need to put in my 20g FT? I don't know what kind of overflow my 40 breeder has on it my guess would be around 700 gph. Do I need to match that and just get another one similar size? My return pump is a mag 7..
Option #1
40b DT overflow into 20g FT then overflows into sump which is returned back to DT
Option #2
Add a small return pump in the sump running to 20g FT then overflow back to sump
Probably going with option #1 unless any other advice seems more efficient.
Option #1
40b DT overflow into 20g FT then overflows into sump which is returned back to DT
Option #2
Add a small return pump in the sump running to 20g FT then overflow back to sump
Probably going with option #1 unless any other advice seems more efficient.