[tkhawaja]

Don't go too crazy trying to fix this. Make sure you have a good maintenance schedule and check out obvious sources of problem. Doesn't matter how long the tank has been set up for unless your imports equal your consumption + export 100%, there will always be sporadic algae blooms. They usually disappear on their own. There could be tons of reasons for this. Eliminate your obvious sources of problem and stick with a good maintenance schedule. Don't do drastic changes unless the problem persists over time.