Help I am not new but starting up new Nano Reef,
I got some nice Live Rock from Borat covered with coral last week, it was doing pretty good i put it into my 15g tank with some Macro Algae, about a week passed water parameters were good, 0 Nitrite, .05 Nitrate, 8.4 PH, Alk good. So yesterday i see this brown sludge like scum all over the bottom of the tank.
I changed the some water but the sludge did not go away, i took the charcol out of canister filter and put in some phosphate remover, what else should i do to remove the sludge.