How To Fix My Water,

[sut]

hi guys.

i change anout 40% ofmy water in my tank about a week ago and prior to doing this i had no issues, after doing this my fish started to die at about the rate of 1 a day, i did a water check tonight and my nitrate result has come back at way over 100ppm.
how do i fix this? and what will have created this issue?

thanks for any help,

 

[ninjacheesefish]

When did you last change the water before this?

To lower the amount of nitrate in the water, you should do a water change to get that down to around 50ppm.

What other levels of chemicals do you have in your tank?

 

[elmo666]

It might be an idea to check your tapwater and see what the nitrate level is in the incoming supply.

 

[sut]

i did a change about a week ago, the other chemical test came back as ok that was the only 1 that had a real issue,