You can use a UGF
with planted tanks, most if they are run the way they were designed use a piece of filter floss(sheet style) between the UGF
plate and the gravel, I run mine in reverse flow when I have them in my tanks and the plants roots were no wheres near close to the UGF
I wouldnt use a UGF
plate alone, but the AC70 HOB
's inlet tube is the same exact size as the UGF
uplift tubes...yes this modification does work and works pretty darn well for what it is. Blew my canister filter away but then again its 20+ years old.