I'm not sure who sells it locally. I haven't used it a couple of years, I think I bought mine off eBay when I had trouble finding it in Canada.
I had a plague of hair algae in my tank that was probably a normal part of it's first year of life, but I was also running heaps of GFO, biopellets, and was feeding very little in a tank with a massive amount of flow. All my sps were pale, looked like crap, not growing, and anywhere the hair algae encroached on their bases, tissue receded.
The algae fix marine took out all the hair algae in about 2 weeks. Corals that had been in suspended animation for months started plating out and growing like mad, and everything changed colour in a drastic way. At no point did I ever measure detectable levels of N or P.
About a year later it started growing in my overflows again, but I have a doliatus rabbit in the display now so I think any that grows in there gets immediately eaten.
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