Gibert19

Here's pics

HELPPPPPP. Tank has been running for 3 months regular water changes, nitrates 0 nitrites o ph 8.3 ammonia 0. A couple soft corals and a couple fish (yellow tang, emperor angel , chromis x5, 2 clowns , goby , 6line wrasse) tank overall has been doing ok had a box fish die he was growing something over his eye so I thought that is the cause but algae is just everywhere on the live rocks and I don't know what kind or what to do to fix it see pics below