How Do I Get Rid Of Green Hair Algae?

[lampro]

I have a 10 gallon with bryopsis algae in the beginning and I was told to add magnesium to kill it and it worked. I also started adding GFO to remove phosphate in my tank. I also tested my water it has low nitrite.
Now my tank have green hair algae on rocks and glass. Should I just restart the tank? what should i do? the magnesium doesnt seem to work on green hair algae.

 

[Sniperhank]

Even byrpopsis is hair algae. The issue is nutrients in the water column. You will need to do large water changes with ro/di water on top of your weekly 10% water changes. Manually remove the algae during your water changes and you will begin to make a dent in the issue.