Hi. If your tank set up encourages green hair algae then algae grazers will only be a temporary fix, like mowing a lawn. When I had a break out, after a two week holiday, it had grown through all my moss, so not easy to physically remove. I spot treated it daily with Excel/Glut. Turn off the filters and bubblers for a few minutes to allow the water to settle down. Using a pipette or syringe squirt the Excel/Glut into the algae. Leave it for about five minutes and put the filters and bubblers back on. After 24 hours the algae treated should turn red and then dissolve over a day or two. This needs to be repeated daily until the algae has gone. It took me about ten days to rid my tank as you have to do a small area at a time. I now dose the tank with Excel/Glut daily and the algae has not returned. The plants appreciate the extra carbon source provided by the Excel so it was a win win situation, however some plants, such as Vals, do not like Excel or Glut. My crypts, Java Fern and Mosses were fine.
As no water changes were done while I was on holiday, I am assuming this prompted the onset of the algae, but it might have been a coincidence.
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