Things are going good little over 3 months now .Ended up moving around some rock work for better flow. The hair algae is still a slight problem. Thinking about adding a algae scrubber box from Santa Monica to help with the algae issue. Just finished taking care of a cyano outbreak.
Your tank is only three months old your going to have the hair algae diatoms and whatever else hits you your tank is immature still yes the nitrogen cycle is done but not you have the maturity cycle going which could be another 8 or 9 monthsthe algae will die off you don’t have enough fish in to worry just check your parameters and keep trucking don’t buy the algae scrubber yet
I'm just about hitting 10 months there has been a lot of rock moving around, move some coral to a different tank and I'm starting to play with more SPS