Shipment arrived really fast, I was very pleased with that. I had a very bad red algae problem and chemiclean sort of did the trick. It took care of the algae on my rocks very well but not so much my sand. I did the standard dose on the box and did my 20% water change afterward. IT killed some of the algae but not all of it. I would recommend this product if you only have a little algae problem. Product mediocre.
Rating:
[3 of 5 Stars!]