I have a 29 gal tank, i do weekly water change. I have 8 platies and 5 sail fin mollies and 2 gouramis. Is it safe to do weekly water change? After doing a water change i add salt to the water i do 50% weekly change. Is it enough or alot? 10x
Perfectly safe...I do two 20-40% water changes per week in my tropical tank, and some people (usually those who keep fish who need pristine water, or raise fry) do water changes more often than that!