I had an 80% breakout of red fuzzy algae in my 100 gal tank. I used Instant Ocean's Nitrate Reducer with pretty good success. I still have a little of it but I can't scrub it off the rocks. I have to let the IO NR do it's thing - at a double dose. It took a year. When it dies, it turns orange and then I can toothbrush it off.
At that point I had PO4 spike and used FozDown to reduce it. I think a combination of methods would be best.
Using IONR puts the micro beads into the rocks where nitrates like to hang out, raise big families and grow luxurious gardens.
AquaAddict
Last edited by AquaAddict; 06-19-2016 at 09:19 PM.
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