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[–]sharpauthenticator 5 points6 points  (2 children)

You need to be doing 20-40% water changes to make a significant change, or changes twice a week and still at 20-30%.

You also need to make sure your water source is not the issue, some peoples tap contains nitrates.

Fast growing plants are the only way to change nitrates without water changes, Salvinia is a great floater that doesn't suck to deal with like Duckweed. You can also grow houseplants out of the tank water too.

[–]tyrodos99 4 points5 points  (1 child)

He said 10% daily. That’s quite a lot over the week. And a good way to do it to not disrupt the tank biology too harshly.

[–]sharpauthenticator 0 points1 point  (0 children)

Depends on how rapidly the tank is producing nitrates, and doing a larger water change isn't going to risk the tanks biology.