Hello I am new to the forum and I 'm trying to find a large tank of craigslist and I came across one that the seller said was 86 x 27 x 31. The tank is pre drilled but there doesn't seem to be any over flows in the pictures.
Does a tank need overflows to have a sump system in a drilled tank? I'm still not totally clear how that all works I'm still trying to understand it all. Are you able to install custom overflows in the tank corners or something like that?
the seller says there are four drilled holes in the back, so would that be two for return and two for output?
Any help would be greatly appreciated
trying to set up a huge central/South American cichlid community!


Does a tank need overflows to have a sump system in a drilled tank? I'm still not totally clear how that all works I'm still trying to understand it all. Are you able to install custom overflows in the tank corners or something like that?
the seller says there are four drilled holes in the back, so would that be two for return and two for output?
Any help would be greatly appreciated
trying to set up a huge central/South American cichlid community!




