States that it is supposed to be able to boost the clarity of water. However it is now 4 days later and I see no improvement whatsoever. I left the pump running, hoping that it would swirl the bacteria around, however nothing.
I'm a bit gutted as £11 is a lot of money to spend on something that does nothing, and there is no chance for a refund as I've obviously used it!!
Live and learn, I guess it's luck of the draw to whether or not it does it's intended job.