Huge hurdle

[siva]

Hmm. Which liquid fert are you using?

 

[GoneFishing]

Hmm. Which liquid fert are you using?

Seachem flourish.. Not iron or excel just flourish

 

[siva]

I've never heard of it causing a nitrate issue but I just don't know enough about it to say. Maybe start a thread in the planted section asking.

 

[fort384]

Unless it is Seachem Flourish Nitrogen, I doubt it is causing a nitrate issue. Flourish Comprehensive does contain some KNO3, but it is a very, very small amount.