water changes not affective at controlling nitrates?

[dogofwar]

Yes - frequent cleaning of mechanical filtration is a way to remove waste before it can be broken down and contribute to nitrate production.

Frequently cleaning filters can reduce both the rate and amount of nitrate produced in a system.

Removing nitrogen earlier in the nitrate cycle is preferable to diluting it (via water changes) later.

Matt

This is not about canisters mate did you read the link in post 1

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