hello, my tank is 18 deep 20 wide and 28 high.about 47 gallons i think.i have a Pharmaceuticals RENA Filstar XP 1 Canister Filter flow not that great ,also have 2 hydro koralia nanos for flow in tank.the diy reactor will be 2"by 14".what can i have run it that will not be to much or too little flow.iam sick of all the bubbles in tank ...thank you