Canisters are great for FW, not so much SW.
The only way I'd say it can ok is if you took all media and filter pads out, otherwise they increase nitrates in our reefs.
Also if that is all you are using you are less than 10x turnover, which is very low turnover for a reef
The only way I'd say it can ok is if you took all media and filter pads out, otherwise they increase nitrates in our reefs.
Also if that is all you are using you are less than 10x turnover, which is very low turnover for a reef