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[Sergio1274]

It has 6 weeks of mounted

Ph. 8.1
NO2. 0
NH3. 0
NO3. 5
PO4. 0.04
Kh. 9
MG. 1250
CA. 375

 

[EmdeReef]

Welcome to R2R!

I think your question got cut off. Please repost.

 

[KrisReef]

Looks like normal algae on the glass, which is pretty standard for a 6-week old tank.

Welcome to Reef2Reef!

Your substrate is a mix of black and white sand, or is that also "growing"?

 

[reef lover]

Welcome to r2r!