I bought a tetra whisper 300 air pump should that create good water movement. Ps. I don't have the tank set up yet just trying to get everything bought for it first so when I add water I'm ready to go.
It depends on your stock. Bio support from 3 HOB filters might not be sufficient ("might" because I don't have first hand experience with AC110's although I have one ac30).
I might add a canister in addition and use one HOB (cheaper one than an AC110) for plants. They def do bring the nitrates down and it looks nice to have pothos growing over and around the tank.