I just figured out I have not been doing the API nitrate test correctly I was not shaking the test tube for 60 seconds my 37 and 100gal newly cycled tanks have nitrates at the high end of the test color. I read some tap water can be high so I tested my well water :yuck:and it is just as high out of the tap. NOW WHAT?? I am in a panic on how I am going to lower the nitrates I cannot afford to buy 50 gallons of spring water to do water changes , maybe a RO system at some point but they are costly. I read mixed reviews of additives to lower nitrates in the water or filter media. Any suggestions? nitrites ammonia in tanks 0 at the moment the 100 gal has been reading .25 nitrites I made some changes to my filters and I think it is mini cycling.Goldfish in the 100 gal and the large black moore is showing signs of problems. I did a 50% water change before I realized the nitrate problem and the moore is a little better he has scales coming off his sides like he was scratched but he is not flashing or fighting.No white spots or any color just patches of scales came off and he was a little depressed.Can nitrates cause this? I have WCM and dojo loaches so should I still use salt?