salifert nittrate test kit

[Randy Holmes-Farley Verified Community Expert]

i understand it now as far as the colors from top down its 25 from the side is 100 my only question now is 25 high for nitrates looking to add sps

It's a little high but likely fine. The drawback is they may possibly be more golden brown with elevated zooxanthellae levels.

 

[jose hernandez]

water change?