About a year ago I had a horrible infestation of the small bubble algae. It grew like a carpet and quickly covered all available rock work, power heads, etc. My nitrates were <1ppm and phosphates were undetectable with an ultra low test kit. Still, it spread like a weed. Hand removal and green/red Mithrax crabs had no real impact. After months of fighting, I was ready to break down the tank and start over. Then, I tried Vibrance. After 1 month it was 80% gone. 2 months, and not a bubble left. No other changes to the tank were made. I don’t normally trust the many magic potions in this hobby, but in this case, Vibrance seems to have lived up to its promises.