About ten years ago I came upon a used 6 foot, 135 gallon tank that had been drilled for external filters. There was a compartment in the tank and some bio balls were in there. The external filter it came with had issues so could not use, but I had a couple of AC 110s so I capped the ends of the tank and used the hang- on- back style with success. Did not put anything in the bio ball compartment as there was no circulation there.
At present I have no fish in the tank so am doing a thorough cleaning and am wondering about picking up an external filter and maybe could run with that and one or two AquaClears.
I include pictures and a couple of questions. Is the pipe on top left a return from the canister and the pipe on the bottom right coming out from the bio ball chamber where the flow into the canister would be? That is how I see it; just want to be sure.
Second question what brand/model of filter would you suggest? Maybe I can get get a deal Boxing Day in Canada. Years back I had classic Eheim 2217 but to be honest, I had trouble with priming a whole lot and did not like. Or maybe I should just stick to the current set up. It seems to be working well with the AquaClears. I mainly keep African cichlids.


At present I have no fish in the tank so am doing a thorough cleaning and am wondering about picking up an external filter and maybe could run with that and one or two AquaClears.
I include pictures and a couple of questions. Is the pipe on top left a return from the canister and the pipe on the bottom right coming out from the bio ball chamber where the flow into the canister would be? That is how I see it; just want to be sure.
Second question what brand/model of filter would you suggest? Maybe I can get get a deal Boxing Day in Canada. Years back I had classic Eheim 2217 but to be honest, I had trouble with priming a whole lot and did not like. Or maybe I should just stick to the current set up. It seems to be working well with the AquaClears. I mainly keep African cichlids.



