It looks to be beyond taking out rocks and scrubbing etc, it's just everywhere tiny ones all over everything. Water params look fine no nitrates, nitrites, ammonia or phosphates. I have heard emarld crabs help but can't get them in NZ and I have hear foxface will eat them, maybe i can find one of them? Should I start running a phosban pack in my sump, would that keep things neutral until I can find something that will eat it? ugh