The hair algae in my tank (from my tank move and all new NSW) is coming off in big clumps so I can easily suck it out. If I had time (I am watching the Grand Kids) I would start my diatom filter and get it all sucked out before it dies and rots all over the place. But I don't see that happening for a few days.
After it is all out I may change some water. "Not" changing water is what is killing the algae. After this phase, the tank will be much better looking and healthier as hair algae is the best water purifier there is. When you remove it, you also remove whatever was making it grow but another benefit is that the algae somehow add beneficial elements to the water (I didn't make that up but I forgot who did) If you keep changing water when you have nuisance algae, it will keep growing. Look at how much water people change to eliminate it and it doesn't work.
After it is all out I may change some water. "Not" changing water is what is killing the algae. After this phase, the tank will be much better looking and healthier as hair algae is the best water purifier there is. When you remove it, you also remove whatever was making it grow but another benefit is that the algae somehow add beneficial elements to the water (I didn't make that up but I forgot who did) If you keep changing water when you have nuisance algae, it will keep growing. Look at how much water people change to eliminate it and it doesn't work.