no3

[Chris A.]

I'm fighting a never ending battle with no3, 50% water change and I'm at 25 no3. I've been dosing carbon for a good 2+ months and can't get it to go down. I blow my rock with a baster and almost nothing comes out. I've been feeding only pellets for to help control the pollution but seams like nothing is working.
Anyone have any other theories?
Open to anything.

 

[dz6t]

Which test kit are you using?

 

[Chris A.]

Salifert

 

[gzr918]

What's your bio load like in what size tank?

 

[Chris A.]

29 biocube
2 clowns small
2 cardinal
Blenny
Coris wrasse
I'm feeding once to twicea day pellets
Weekends I give them some frozen brine w/ spirulina