SeachemPhosGuard 1 Liter

I’ve been struggling. Despite RO water and new salt, couldn’t get rid of the brown algae in my sand. Changed this phos guard weekly and in about 2-3 weeks, sand is clean! Somehow I had silicates!

These are before and after photos of how well this product works after 30 days.My 200 is showing signs of overstocking as my little fish are growing up. Phosphates were through the roof no matter what I tried. This product helped bring them down to zero, so I just reduced the amount I use until I get it to a minimum amount.I’ve only used in a saltwater tank, so I’m not sure how efficient it is in fresh tanks. This and adding additional mechanical filtration does the trick!!

I’ve been dealing with diatoms and while they’re not catastrophic, they look gross in my otherwise pretty betta/shrimp tanks.I just added this today so can’t speak on the results, but want to add that the media is very small (a tiny bit larger than those tiny spherical sprinkles), so be sure to have a very fine mesh filter bag to put it in.You only need 1/3 cup of Phosgard per 100 gallons of freshwater, so keep that in mind so you don’t accidentally buy two lifetimes worth of it like I did.

After reading all the negative reviews online about the Phosguard causing problem by leaching Aluminum into the reef tanks, I was very hesitant to use it. I have leathers, frogspawns, torches, zoas, and mushrooms in my tank. Had some hairline algae growing from a live rock that I had placed in the tank. The API phosphate test kit said my phosphate was zero, but since the hairline algae was present I knew the test kit just couldn't measure the phosphate that low. I placed the Phosguard in a bag with the RECOMMEND amount for a 30 gallon tank. So far I can tell that the nuisance algae is a lot less and it's only been 3 days. I am pretty sure the people having issues with this product are using the wrong dosage and adding too much. This stuff works so well at dropping the phosphate that you can shock the coral if the phosphate level changes to quickly. I have also noticed that the corals are doing better now too by opening up even more and the torches are extending even further.

I have a salt water aquarium and it dies hell drastically reduce phosphates you must consistently change the media though. But it helps you stabilize for sure!

Well, I know it works because I put WAY too much too quickly. Stripped my tank of PO4 and it showed. Corals took a hit so need to make sure you slowly add the PO4. I would do it in 1/4 recommended and bump it up until you see the positive effects of low PO4. Nuisance algae should start disappearing, algae on glass not building up either at all or nice week or two gap in between cleaning, etc.

Bought this due to high phosphate in tank. A bag of this last 4 + days. Then you change it out to keep it going. This reduced my phophate levels drastically

It's nice because you can just throw a bag of it in your sump/return area. It works slowly but is pretty weak in removing phosphates and makes the water cloudy no matter how well I rinse. I have to use double the amount indicated to lower my phosphates. The media is full after 4 days and needs discarded. I will be moving to a reactor and gfo for something with a little more muscle and longevity.