RTN From Base Upward

[Kevinmj70]

Salinity-1.026
pH 8.3
Temp 77.2
dKH 8.62
NO3 13.8
PO4 .01
Yep, it’s only 3 months old and I should not have SPS in it. Any ideas on why RTN from the base up and any recommendations?

 

[exnisstech]

I wish I knew the cause. I've had this happen to single pieces while everything else is fine. I've had RTN, STN, top down, bottom up and no idea what the cause is.

 

[bobnicaragua]

I can look at the rock and see it’s immature. Adding real live rock to seed the tank will speed things up.