Acurel LLC Phosphate Reducing Media Pad, 10-Inch by 18-Inch

Worked great. Great for emergency algae blooms. If was a bit cheaper I'd probably buy more of it. I'm not really sure how long it keeps working for and how effective after a few days is my only concern.

I have a 75 reef and I was skeptical about if this would work or not especially for my problem. I was dealing with diatoms issues and I didn't know where they were coming from. My phosphate levels read very low and I don't over feed or over light. My tank is 6 months so i expected it was coming from still being a new system. This was a $6 add on so I gave it a shot. Before adding this to my tank I usually cleaning the glass every 4 days, I also started getting diatoms grow on my sand bed out the blue and was so dark that I had to siphon it out. It came back but not as strong afterwards. After I place the pad in my trickle tower, I started to notice less diatoms on the glass and its been almost two weeks since I added this and the diatoms is almost gone from my sand bed. Its dying off and I haven't cleaned my glass in over a week. Going thru stages in your tank can get on your nerves and I can say this pad really helped get rid of that nerve bothering problem. I don't know how long the pad last but its only one way to find out.

Excellent product

Cut to fit, and put in my filter trying to cut down on brown algae. Seemed to work.

There's no safer or faster way to remove Phosphates! No chemicals to affect your fish. SO effective!!! If you are using it for the first time, but two packs...you'll want to change it out more quickly the first time or two abc then one cut out piece will last a looooooong time once your issues are under control! Get a slime control product as well as you'll be very happy!!! *** this pad collects phosphates so it's like a Petri dish for algae!!! Clean it often or your filter will fill with thick chunks of green and algae living off the phosphates it collects out if your water! It's just doing its job! Keep up an anti-algae regimine (just buy copper sulfate in bulk...8 little crystals will treat a 25g tank! And you'll have enough to treat tanks for a lifetime!!! Also to scrub off all tank components and glass! Just WATCH your fish for toxicity IF YOU USE PURE COPPER SULFATE!!! AND KEEP CRAZY HIGH OXYGENATION (just let water level stay a few inches low and your filter will crash water back in from more height and create more dissolved O2!)!!!