I have tilapia (about 10) and guppies (unknown how many are in there) in a 75 gallon FT.
I have FT overflowing to a 5 gallon solids bucket. I have a scrunchy on this overflow and then from this bucket it is overflowing to the filter bucket I described above.
I am now actively scooping out any debris from the bottom of the FT on a daily basis now.
This seems to work very well with my small balcony system.
Plants going crazy right now....tomato, eggplant, basil, strawberry and manually feeding Okinawa sweet potato bucket
Livin' the Dream!