Tetra Algae Control Pond Block Water Treatment, slide 1 of 1

Tetra Algae Control Pond Block Water Treatment

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    $126.99

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Description

Clear cloudy ponds and remove algae with Tetra Algae Control Pond Block Water Treatment. Cloudy water is caused by overfeeding, gravel sediment, soil and other particles and algae is common in ponds and fountains. Both can result in poor water quality and cause stress to fish. Tetra Algae Control Pond Block Water Treatment works to clear water and algae in backyard containerized ornamental ponds and fountains. It EPA approved and not recommended for use with live plants.

Key Benefits
  • For containerized ponds only
  • Limited to use for backyard or homeowner ponds and water fountains
  • EPA approved
  • Not for use with live plants
  • Safe for fish but not for use in non-ornamental ponds
Precautions

Pond Block is limited for use in backyard/homeowner ponds and water fountains. For containerized ponds only. Not recommended for use with live plants. HAZARDS TO HUMANS: Keep out of reach of children.

See all items by Tetra

  • Item Number
    98241
  • Dimensions
    5.375 x 5.375 x 9.5 inches
  • Weight
    4.4 pounds
  • Aquarium Type
    Pond
  • Fish Type
    Koi & Pond Fish
  • Product Form
    Liquid
Instructions

Use one block for water volumes between 100 and 250 gallons. Initial dose may require one block for each 100 gallons. For regular maintenance, replace block when fully dissolved (usually after 30 days).

Rating: 3.9 of 5 stars 20 Reviews 20 Reviews 3.9 out of 5 Stars

85% Recommend

85% of reviewersrecommend this product

Rating: 3.9 of 5 stars 3.9 / 5

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20 Reviews

Showing 1-10 of 20 Reviews

  • 1 out of 5 stars

    Does not work!

    By NOPE on Oct 15, 2021

    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!

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  • 5 out of 5 stars

    Pond So Clear!

    By JoeS on Jul 16, 2021

    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.

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  • 2 out of 5 stars

    Algae control - not

    By dfarr on Sep 11, 2021

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

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  • 2 out of 5 stars

    not working for my bird bath

    By Fran on Jun 19, 2021

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

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  • 5 out of 5 stars

    Amazing Pond Block

    By guearyt on Dec 11, 2020

    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.

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  • 5 out of 5 stars

    absolutely the best for my turtle/Goldie pond

    By shatt09 on May 8, 2020

    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

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  • 1 out of 5 stars

    Poor packaging

    By FormerCustomer on Apr 2, 2020

    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

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  • 1 out of 5 stars

    Don’t waste your money!

    By Shellycool on Jul 2, 2020

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

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  • 5 out of 5 stars

    Helps control

    By Racegirl on Nov 22, 2019

    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

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  • 5 out of 5 stars

    Highly recommend

    By Sherri on Apr 26, 2019

    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

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