Hi all, last few days I've been seeing some white stuff on my live rock.. I've done some research and from what I've read this is dead Coraline, which can be caused my lack of light or due to changes to calcium and MG.. Last month I've been dosing nitraphos for nitrates and I lost all my fish due to ich, so the tank runs without fish for about 2 weeks almost.. Also I am running skimmer but I have my lights off so could the light be an issue for the Coraline or could my short spine urchin eat the Coraline?
Parameters are :
Nitrates close to 25
Phosphates at 1
And salinity at 1.020
(i don't have any other test)
Parameters are :
Nitrates close to 25
Phosphates at 1
And salinity at 1.020
(i don't have any other test)