Two Little Fishies NPX Bioplastics, 400ml

I had/have hair algae and it's slowly diminishing in the tank so it is working... I gave 4 Stars because I have yet to see a reduction in nitrates. Otherwise for a phosphate reducer works well.... could have bought gfo but I feel this works better and easier to maintain.

These bio pellets will create a huge bacteria bloom if you are not careful. Also if the reactor is not large enough for the entire package of bio pellets, don't worry, even less is enough for a lot of systems. Make sure to leave enough room for the circulation of the beads once the powerhead is turned on. Anywhere from an inch to half an inch between the moving beads and the mesh screen inserted to keep the pellets from exiting. (Mesh Screen is an optional purchase or from a hobby store). If no room is left then the pellets will eventually clump and the bacteria will not be as efficient as if the pellets were circulating. When initially startup allow the bloom to take over 3-4 days at the most and make sure you have a large amount of carbon in use and the outlet of the bio pellet reactor next to the inlet of the skimmer so the bi-product made from the pellets can be skimmed and removed.

"Don't waste your money biopellets created a bigger issue than it was worth. After a week my tank had a Real bad cyanobacteria outbreak. Not worth the money or the hassle went back to GFO. Effects my phosphates and I control my Nitrates with a weekly water change. I research the product before I bought it and still had issues with it don't try you're going to end up destroying your reef tank not worth the time or money."