Hi,
This is what I have. The tank is 36x18x25=65 gal. UGV which measures22x16 which is not a tight fit and a rena air 400 pump, and a Eheim 2217 which is supposed to be good up to 159 gal. My gravel is real fine not coarse, I read sand and fine gravel don't do well with a UGF system. My question is should is I use both filters? At my local fish stores, some say do, and some say don't. The tank is clean and it is time to make that decision. This tank was given to me and I don't know what to do.
This is what I have. The tank is 36x18x25=65 gal. UGV which measures22x16 which is not a tight fit and a rena air 400 pump, and a Eheim 2217 which is supposed to be good up to 159 gal. My gravel is real fine not coarse, I read sand and fine gravel don't do well with a UGF system. My question is should is I use both filters? At my local fish stores, some say do, and some say don't. The tank is clean and it is time to make that decision. This tank was given to me and I don't know what to do.