I bought some SPS from someone and the coral looks much deeper in colour in the tank.
After I introduce the SPS into my tank, the colour seems to lighten. The blue is not that intensed blue any more and same for other colours. I am wondering if there is something wrong with my light or water parameters.
Nitrate/Nitrite: close to 0.
PO4: Not tested but I am running rowaphos and a refugium with cheato. Little green algae observed in the tank.
Using TLF A+B:
CA: 380
KH: 9.3
H2Ocean salt: 1.023
I do dose the TLS sea element sometimes.
May I know if I raise the KH to 12, and CA to be about 400+, the colour will be intensified?