I don’t know about harmless. I almost packed up my 220G and left after 8 months of GHA. Once algae starts covering your expensive corals and you’ve gone through a lot of money, labor, and stress trying to save your tank- it’s not a little thing. We all put so much into building our reefs and we control everything in the system. I don’t think any of us can easily ignore a problem that can get out of control and damage our reefs.Do you think reefers tend to be too concerned over pest algae and bacteria?
Many people claim that they will leave, or have left, the hobby because of their fight with Cyanobacteria, turf algae, bubble algae, or any of those other pain-in-the-butt pests. But many of these, while unsightly, are relatively harmless, and can be managed even if not eradicated. Would you give up reefing if you struggled with nuisance algae? Or would it still be enjoyable to you?