diseased

My tank crashed This was the series of events that caused this: Reef flux added 24hours later crazy ammonia spike - why this happened I’m not sure - like off key maxed out my testing kit and I wondered how everything was still alive. Fish okay. Some of my corals look ticked. Urchin was...

I’ve had my Duncan for about 4 days now. I understand it may take some time to open. However it has a brown /white slime over it. Any ideas as to why?!