How frequently do you do water changes?

Honestly, very rarely. I maybe do a 10-20% change once a month dependent on what is going on in that tank.

For saltwater related setups I tend to do them more often like weekly or bi-weekly dependent on the tank size and what’s in there.

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I would think once a week like with freshwater, right?

I also only don't do very regularly, I don't have a big tank and the water is very clean. Maybe once a month I do 20% change of water.

I found cleaning the entire tank caused some fish to die. I also have a few shrimp that clean the tank.