Clean filters

At least once a week. Just don't do it the same day you do a wc


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I'd clean them all once a week. Just do them on different days like do 1, then the next day do another and since you have 3, you can probably clean 1, maybe 2 on the day of a wc.


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i havent cleaned my canisters in over a year and there still fine.. Looks like another problem as in over feeding, left over food trapped on the floor or overstocked.

What size tank u have , I clean mines once a month

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A good indicator of when your filters need cleaning is when your return flow rate begins to diminish.

First off, what size is your tank, what's your stock, and what filters are you running?. Pics of stock and filters would greatly help.

You might be not be getting enough filtration capacity for your bio load. You might not have enough bio media. You may be way over feeding. There's plenty of factors. If your filtration is adequate, you should be able to go months without cleaning your filters. As Joe said, a good indicator is when your return flow slows

Cleaning them once a week seems a bit much unless you have a huge bio load

If its ammonia as well, could be an indication of needing more water changes