Seachem Phosguard, 500ml

Amazed with the result. Highly recommended to remove Diatoms/Brown Algae from both freshwater and reef aquarium.

Been using it for about 7weeks and as instructed -= small amount frequently i.e. every 7 days.The pellets do turn from white to a light brown over a week, I think it helps but it's not as good as the advertising suggests. Having goldfish means live plants don't last, but in their absence, brown diatoms algae arose. Deep clean. glass scraping, and adding marimo moss balls as a substitute for live plants seem to be getting it under control, but do not necessarily expect fast results if you go for this option. Patience is very much needed.

Had a phosphate reading of 2ppm and bought this to try and reduce it. Popped the required amount in mesh bag and put it in my 125l freshwater tank. Used a Small Fluval U1 filter to increase water flow through the bag. 4 days later and it’s now 0ppm and really pleased. Brown algae that was appearing all over my tank has stopped spreading. Good stuff!

No instructions provided as to quantity required so will research. Will try putting it in the carbon tray of my biorb tank. Still haven't found a solution to green bloom.

Cant comment yet over other brand that i used Rowa. My po4 ware already low at 0.004 now after second dosage shows 0 counting i didnt use any phosphate remover for over 7 month. Would i buy again... Yes its cheap for quantity you use and rincing compared to Rowa its night and day.

Does the job well, reduced my phosphate level by half lasting a couple of weeks, places in my external filter I use a cheap cut pair of tights to hold it in. Has not harmed livestock or effected the balance of aquarium.