I have a 650l Red Sea reef tank. I had a persistent and bad outbreak of black slime algae, mainly on the sand bed. I used this as instructed, keeping the skimmer running but with the collection cup removed. After 24 hours, the slime looked like it was starting to slowly breakdown. However, by day 3 (I kept it in the water for longer) there was a big improvement. I did manually remove as much remaining slime from the sand bed as possible at this stage (the consistency had changed and it peeled off) and following this point the sand continued to improve daily and it is now pristine, with no slime algae at all. I did the treatment a few weeks ago, and am pleased to say that it has not returned. My outbreak was severe, but with a little manual cleaning along the way it worked incredibly well and exceeded my expectations. Fantastic product.Read full review
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Fantastic product that removed red cyanoalgae exactly as it says it would. Make sure to add exactly the amount they suggest and keep your skimmer on without the cup to create bubbles and aerate water. Take out any carbon filter media but keep it on for water circulation. Within 24 hours, all the red cyanoalgae disappeared completely and hasn't come back since. No fish or coral loss or affected at all. Highly recommended product. Thanks.
Verified purchase: Yes | Condition: New
Brilliant I would use again all my red slime has gone really happy with the results make sure you turn off your skimmer ...plus it's a must that the water change is done to ....
Verified purchase: Yes | Condition: New
Used it on my 6 gallon mixed reef nano...all cyanno gone by day 3 with nothing harmed or even unhappy in the process I dont have a skimmer just ran an airstone..did a water change after 48 hours and ran some activated carbon to remove the residual chemiclean Very happy with the product and would not hesitate to recomend or use again
Verified purchase: Yes | Condition: New
It’s brill stuff but over priced for what u get..don’t get me wrong it’s really good stuff but I don’t think the price justifies the quantity you get for the money
Verified purchase: Yes | Condition: New
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