Tetra Algae Control Pond Block Water Treatment

This is my second bad review for a tetra pond product. Not only did my pond filtration kit not work even a litte after two months. But the pond block does not work either! After two months I still have alga and the block is the exact same size as it was when I placed it in. It looked like a concrete block before putting it in and it still does. So spend a litte more money on a better product. Tetra has some great products on the market and I give props where they are do but I will also tell you if your messing up!

After three 90 degree days our 500 gallon fish pond greened up; we could not see the bottom or our fish. Local pond stores recommended products costing 5 times the cost of Pond Block & would take 30 days to work. I ordered from Chewy & had delivery in less than 24 hours. Using just two blocks to start, water was absolutely clear in 4 days. I immediately placed another order & that also arrived in less than a day. I highly recommend Chewy & the Pond Block Product.

This may be a fine product, but it does (and did) not control algae in our small pond.

used a full cube of this substance and even after a week, it has not made any difference in the algae in the water

Pond Block is now a must for my Koi pond. I have tried numerous chemicals and natural solutions. They worked very little or none at all. In one day Pond Block had my pond water clear. The liner algae is continuously going away.

Hands down the best algae and sludge and cloudy water cure I have ever used in 12+ years. I have don’t the liquid pour in, the rock salt in the filter, vacuuming daily, you name it-we’ve used it. I got these on a whim and thank god, they have been a game changer. My pond gets full full hot sun all day and turns to pea soup quickly. Sure I get huge goldies from the algae but I look to see what my pond looks like rather than a dark green sludge farm. I have only used 6 tablets in my 400gal pond so far and absolutely loving them. So easy so simple and they work. I can’t rave enough about them. Until your have a large red ear slider, 12+ large goodies and live feeding you have no idea the work involved Hands down the best algae and sludge and cloudy water cure I have ever used in 12+ years. I have don’t the liquid pour in, the rock salt in the filter, vacuuming daily, you name it-we’ve used it. I got these on a whim and thank god, they have been a game changer. My pond gets full full hot sun all day and turns to pea soup quickly. Sure I get huge goldies from the algae but I look to see what my pond looks like rather than a dark green sludge farm. I have only used 6 tablets in my 400gal pond so far and absolutely loving them. So easy so simple and they work. I can’t rave enough about them. Until your have a large red ear slider, 12+ large goodies and live feeding you have no idea the work involved in keeping a pond looking somewhat ok. Now my pond is crystal clear, the rocks inside aren’t even covered in algae anymore. Like I said hands down game changer and now a customer for ever. … more

The package was not properly packaged and arrived two weeks after the order. Although the box was undamaged, the lid of the jar inside was broken into three pieces and all the contents were scattered inside the box

No difference between before and after use of this product in my pond!

Been buying it for years, always had fountains in the houses I lived in and when the weather gets warm the algae gets bad. It really helps

I dont like using chemicals in my outdoor goldfish pond. Last year the algae and sludge were a nightmare towards the end of summer. I couldn't even see my 8 goldfish. Nothing i did naturally helped. After doing ALOT of research on this product, i decided to give it a try. I also use the API Sludge Remover which isnt a chemical. Its been 2 weeks and i can finally see my fish. If your pond is bad, this product will NOT work overnight as some claim. You still need to put some time into helping these products along. At first, i was cleaning my filter pads 2x/day. Now i dont have to change them but once every other day. You also need to net out the dead algae. No scrubbing tho. I don't have I dont like using chemicals in my outdoor goldfish pond. Last year the algae and sludge were a nightmare towards the end of summer. I couldn't even see my 8 goldfish. Nothing i did naturally helped. After doing ALOT of research on this product, i decided to give it a try. I also use the API Sludge Remover which isnt a chemical. Its been 2 weeks and i can finally see my fish. If your pond is bad, this product will NOT work overnight as some claim. You still need to put some time into helping these products along. At first, i was cleaning my filter pads 2x/day. Now i dont have to change them but once every other day. You also need to net out the dead algae. No scrubbing tho. I don't have time for heavy pond maintenance so I am glad i found both of these products. I will always keep them on hand plus use the minimal amount just as a maintenance regime. I am extremely pleased with these products and would highly recommend them. But again, you must have patience as these products will not work overnight. … more