I have a 55 gallon freshwater tank that is heavily stocked. All the fish are fine and healthy, but I have noticed recently that the nitrate level was outrageous. The reading said 180 PPM. I did a 50% water change the very next day. I just tested the water a little while ago, and the reading was 40 PPM.
I have been reading up on how to lower nitrate levels and the main answer is always PWC. I am looking for other alternatives that work as well. I read somewhere that you can add salt to the tank. I think it was 1 tsp per 10 gallons.
Another that I thought that I had read somewhere said adding vodka (???) to the water would help lower the nitrates as well.
I am perfectly fine with doing the PWC, because I don't want to get rid of my fish (knowing that I am overstocked). I just didn't know if anybody had any other input on other ways to lower the nitrates in the tank.
Thanks in advance.
How to Control Nitrates
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