Reybeast Posted January 20, 2021 Share Posted January 20, 2021 Which canister filter do you use? Tank size? Would you buy it again if you could go back in time? Which one would you buy now if you had to get another one? Quote Link to comment Share on other sites More sharing options...
Timfish Posted January 21, 2021 Share Posted January 21, 2021 I wouldn't use a canister filter to be honest. The problem I've had repeatedly with them is sooner or later the o-rings don't seat right and you get a drip. There is also the problem of lack of oxygen during a power failure killing off everything inside. I haven't actually known this to kill off tank inhabitants (although it is a risk) but cleaning out the filter after this happens is very unpleasant the hydrogen sulfide produced can stink up a room pretty bad for a while. Quote Link to comment Share on other sites More sharing options...
jestep Posted February 19, 2021 Share Posted February 19, 2021 For freshwater, the classic eheims are unbeatable IME. They can last decades, I've run one in the past for like 10 years without even changing filter pads and it was fine. For SW, definitely wouldn't recommend one either. Most of the denitrification is done in the tank itself. Canisters just make a good way to create a large nutrient storage container. Quote Link to comment Share on other sites More sharing options...
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