This is a great product for removing cyanobacteria. When I purchased it, the bloom in my tank was so bad that a green carpet was forming on everything in the tank a metre 36 hours after I cleaned the tank! I put one dose in before the weekend and then waited until Monday to do a second dose, and then I cleaned the tank on Thursday. A week later, the cyanobacteria had not returned and I haven't had to redo the dose since! I suspect the cyanobacteria came in on a plant I had introduced to the tank. I keep a native Australian freshwater turtle and a convict cichlid, both prefer hard water (pH of approx. 8) and they didn't exhibit any signs of distress or irritation in their eyes or skin. I have already recommended it to others.
Verified purchase: Yes | Condition: New
Its great I pout it my tank and about a week or so and now every thing is gon tank is back to normal again a little bit of this stuff goes a long way love it
Verified purchase: Yes | Condition: New
this stuff works a treat, been well over a month now, closer to 2 and it has not returned.
Verified purchase: Yes | Condition: New
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