Review on Phosban 150gm Two Little Fishies ATLPB2 by Victoria Flores

Bought at 10ppm po4. The manufacturer was very helpful. The product could easily be added to the 2 liter Phosban reactor. I used 25g for my 55 gallons. Launch it at around 25 gph for a slight noticeable drop in media. I'll let you know what my Po4 is in 2 days just before the water change. 3 days later and no visual effects. Update 3-1-21: I recently contacted the manufacturer and they have been very helpful, I have to highlight how well these people support their products.