- Have you tested your water?
- Yes
- If yes, what is your ammonia?
- 0
- If yes, what is your nitrite?
- 0
- If yes, what is your nitrate?
- 10
- If I did not test my water...
- ...I recognize that I will likely be asked to do a test, and that water tests are critical for solving freshwater health problems.
- Do you do water changes?
- Yes
- What percentage of water do you change?
- 21-30%
- How frequently do you change your water?
- Every week
- If I do not change my water...
- ...I recognize that I will likely be recommended to do a water change, and water changes are critical for preventing future freshwater health problems.
Hi, I’m loosing a lot of my bristlenose plecs in my main 200 litre tank. They appear to be getting red patches on there skin and then a few days later end up dead. The ammonia is 0 nitrite is 0 and nitrate is 10ppm and ph is 7. I do 30% water changes once a week and it’s stocked with corys and angelfish. I have no idea what’s going on and any help would be appreciated.

