Been trying to deal with this nuisance algae for a while now. It’s getting a bit frustrating. Looking for a positive ID and any suggestions. I’ve tried increasing my WC frequency, reducing feeding, increasing skimmer speed on DC pump, changed my gfo, changed my gac, vacuumed the algae out daily for a while, vacuumed the sandbed thoroughly, and even added some bacto balls that I got as a free sample.