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Tetra WaterClarifier Clears Cloudy aquarium Water, 8.45-Ounce, Model:77136

4.5 4.5 out of 5 stars 3,305 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Aquarium Water Treatments by Tetra

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8.45-Ounce

Purchase options and add-ons

Brand Tetra
Liquid Volume 8.45 Fluid Ounces
Item Weight 0.52 Pounds
Item Form Liquid
Target Species Fish

About this item

  • FOR FRESHWATER aquariumS Quickly clears cloudy or hazy water caused by overfeeding gravel dust and other minute suspended particles
  • CLUMPING ACTION Causes small suspended particles to quickly clump together to settle or be removed during normal power filter operation
  • WORKS ON SOFT WATER Safe for fish even in very soft water (low kH) conditions
  • USAGE 1 teaspoon treats 10 gallons of water
  • Included Components: Tetra Water Clarifier (8.45 Oz)

Customer ratings by feature

Easy to use
4.3 4.3
Stability
4.0 4.0
Value for money
3.9 3.9
Sheerness
3.9 3.9

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Product Description

Product Description

Tetra WaterClarifier clears cloudy aquarium water caused by overfeeding gravel dust and other minute suspended particles This phosphate-free liquid solution is safe to use in all freshwater aquariums This effective formula works by causing small suspended particles to quickly clump together These larger particles are then removed during normal power filter operation This formula is based on clarifiers used to treat drinking water It’s safe to use with fish and plants and will not affect water pH levels in your aquarium Unlike many clarification products on the market Tetra WaterClarifier is safe for fish even in very soft water (low KH) conditions However in extremely low KH conditions below 1KH half dosage is recommended If in doubt about your water’s hardness perform a 20% water change before treatment Be sure to use Tetra AquaSafe water conditioner for each partial water change and Tetra EasyStrips Test Strips to measure your water’s hardness Since 1951 Tetra has developed the world’s most comprehensive body of fish food knowledge and fishkeeping enthusiasts have looked to the brand for products and solutions that add ease and beauty to their home Whether you're an experienced hobbyist or just starting out Tetra has everything you need – from a large variety of quality fish food and innovative equipment to test kits and decor

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Quickly Clears Cloudy Aquarium Water:

Tetra Water Clarifier works to quickly clear cloudy or hazy aquarium water. This easy-to-use formula safely settles minute particles and cloudy water caused by overfeeding, gravel dust, and other particles. Tetra Water Clarifier is safe to use for all freshwater aquariums and is phosphate free.

How it Works

Tetra Water Clarifier works by causing small, suspended particles to quickly clump together. These larger particles are then removed during normal power filter operation or they settle to the bottom and are removed during gravel cleaning.

Safe and Effective:

Tetra Water Clarifier is a safe and effective formula based on clarifiers used to treat drinking water. It is phosphate-free, safe to use with fish and plants, and will not affect water pH levels in your aquarium.

Tetra Sets the Bar high in Water Care and Maintenance Treatments

Tetra sets the bar high in water care treatment and maintenance with a four-step, color-coded system. From aquarium start-up and routine maintenance, to trouble shooting solutions and testing, Tetra offers everything you need to keep your aquarium water healthy. Take a look at the chart below to see the full line of Tetra water care treatments.



New Aquarium? Tetra SafeStart allows you to safely add fish to your tank immediately. Use AquaSafe whenever adding water to neutralize chlorine and heavy metals.

Use EasyBalance weekly to keep your water chemistry balanced. High ammonia? Use AmmoniaSafe liquid or tablets.

Cloudy water? Clear it up with WaterClarifier liquid or tablets.

Algae issues? Keep in check with AlgaeControl liquid or No More Algae tablets. Tetra EasyStrips make regular water testing a breeze.

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 1.63 x 3 x 7 inches; 8.32 ounces
  • Item model number ‏ : ‎ 77136
  • Department ‏ : ‎ Unisex-Adult
  • Date First Available ‏ : ‎ June 20, 2004
  • Manufacturer ‏ : ‎ Tetra
  • ASIN ‏ : ‎ B002DVWSVI
  • Country of Origin ‏ : ‎ Germany
  • Customer Reviews:
    4.5 4.5 out of 5 stars 3,305 ratings

Important information

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This Item
Tetra WaterClarifier Clears Cloudy aquarium Water, 8.45-Ounce, Model:77136
Tetra WaterClarifier Clears Cloudy aquarium Water, 8.45-Ounce, Model:77136
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Price-14% $5.99
List:$6.99
$12.99$6.49-15% $6.00
List:$7.04
$10.99-7% $7.59
Typical:$8.19
Delivery
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Customer Ratings
Easy to use
4.3
4.2
4.0
4.3
4.6
4.7
Stability
4.0
3.6
3.8
3.9
4.3
4.4
Value for money
3.9
3.6
3.7
4.0
4.0
4.4
Sold By
Amazon.com
Aquatic Experts
Crystalpro Aquatics
Amazon.com
Amazon.com
Amazon.com
target species
Fish
Fish, Shrimp, Turtle
Fish
Fish
Fish
Fish
liquid volume
8.45 fluid ounces
250 milliliters
125 milliliters
3.38 fluid ounces
8.45 fluid ounces
3.38 fluid ounces
form
Liquid
Liquid
Granules
Liquid
Liquid
weight
0.52 pounds
0.66 pounds
0.15 kilograms
0.01 ounces
8.45 ounces
0.24 pounds

Customer reviews

4.5 out of 5 stars
4.5 out of 5
3,305 global ratings

Customers say

Customers like the performance and value of the aquarium pond water treatment. For example, they mention it works well, is safe for fish, and does well with soft water conditions. That said, opinions are mixed on clarity and quality.

AI-generated from the text of customer reviews

152 customers mention114 positive38 negative

Customers like the performance of the aquarium pond water treatment. They say it works well, it's safe for fish, and it works quickly and efficiently. Some mention that it works very well with soft water conditions.

"...The clarity just kept dropping.This works well and within 30 minutes...." Read more

"This is a fairly inexpensive product that really works and helps to have particles bind together to be big enough for the filter to grab...." Read more

"Quality product. Works well. Removes chlorine from tap water." Read more

"Didn't seem to work at first. But after adding some water it finally cleared." Read more

29 customers mention29 positive0 negative

Customers appreciate the value of the aquarium pond water treatment. They mention that it works great and is a good buy.

"This is a fairly inexpensive product that really works and helps to have particles bind together to be big enough for the filter to grab...." Read more

"...The cost was reasonable for the size of the bottle. I would recommend this product if you don’t want to brave the brick and mortar stores." Read more

"Worth every penny! Any time I need to clear up my tank I have always gone to Walmart and they only carry the small bottles...." Read more

"Great value for the price. I like to stick up on this for my turtle tank and the size is a great value for the money spent. I bought two!" Read more

7 customers mention7 positive0 negative

Customers find the aquarium pond water treatment easy to use and effective. They also appreciate the easy measurement instructions.

"Great and easy to use" Read more

"Does as described. Easy measurement instructions." Read more

"The Tetra WaterClarifier Treatment is as easy to use as the previous water treament. This is great to use if you have cloudy water...." Read more

"As always, this clears my turtles' water up every time. Easy to use and the price is right!" Read more

105 customers mention65 positive40 negative

Customers are mixed about the clarity of the aquarium pond water treatment. Some mention that it keeps their aquarium water clear, while others say that it makes the water cloudy.

"...IT WORKED! (see third picture) Tank is much clearer. But not "crystal clear" No fish were harmed. So I give it five stars...." Read more

"...The clarity just kept dropping.This works well and within 30 minutes...." Read more

"It did exactly as it says. Cleared my fish tank water right up." Read more

"...It emulsifies the particles in the water and allows the filter to remove the cloudiness. Highly recommend!" Read more

23 customers mention11 positive12 negative

Customers are mixed about the quality of the aquarium pond water treatment. Some mention it has never harmed their fish, it works almost instantly, and is safe for freshwater shrimp. However, others say that it killed all of their fish.

"It's quite a small bottle so it's not going to last very long if you have a big tank or have to use it often, but it really helps to clear the water..." Read more

"...But versus a full clean of the tank it does help out. No issues to freshwater shrimp as well." Read more

"...I've been doing for years and the next morning I woke up and all my fish were dead...." Read more

"...Tank is much clearer. But not "crystal clear" No fish were harmed. So I give it five stars...." Read more

Added it to my 60-gallon tank  - before and after pictures
5 Stars
Added it to my 60-gallon tank - before and after pictures
Berfore: My tank is cloudy, probably from having its light on too much, from overfeeding and from algae. When I remove algae with a sponge and a scraper it's going to float and mess up the water a little. Did a 25 percent water change and put new Poly-fill in my Seachem Fluval 75 HOB filter. Then this evening at 7 pm I took a picture and added 30 ml of Tetra Water Clarifier to the water. (That was easy to do because the bottle has a very small opening and there are raised lines on its side each indicating 10 ml. So I kept pouring until the level was down three lines.)AFTER: It's five days later. After 48 hours I did a 25 percent water change and added another 30 ml dose. Then 48 hours later a third dose, changing my Poly-Fill filter, which had already tra[[ed much fine "stuff". IT WORKED! (see third picture) Tank is much clearer. But not "crystal clear" No fish were harmed. So I give it five stars.Cloudiness can have many causes and can be hard to deal with. Epecting this one inexpensive solution to do the whole job in most cases isn't realistic. In my case, I know there is more for me to do. Partial water changes more often. Less food. Leave the light on much less. It may be a bacterial problem and my HOB filter's bag of biological pellets may have been messed up (out of the water too long) a few weeks ago. Extreme water changes could be the wrong thing to do. It may clear up in another week or two. Patience.
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Top reviews from the United States

Reviewed in the United States on January 18, 2024
Size: 8.45-OunceVerified Purchase
Reviewed in the United States on March 20, 2021
Size: 8.45-OunceVerified Purchase
8 people found this helpful
Report
Reviewed in the United States on May 10, 2023
Size: 3.38 OzVerified Purchase
Customer image
5.0 out of 5 stars Added it to my 60-gallon tank - before and after pictures
Reviewed in the United States on May 10, 2023
Berfore: My tank is cloudy, probably from having its light on too much, from overfeeding and from algae. When I remove algae with a sponge and a scraper it's going to float and mess up the water a little. Did a 25 percent water change and put new Poly-fill in my Seachem Fluval 75 HOB filter. Then this evening at 7 pm I took a picture and added 30 ml of Tetra Water Clarifier to the water. (That was easy to do because the bottle has a very small opening and there are raised lines on its side each indicating 10 ml. So I kept pouring until the level was down three lines.)

AFTER: It's five days later. After 48 hours I did a 25 percent water change and added another 30 ml dose. Then 48 hours later a third dose, changing my Poly-Fill filter, which had already tra[[ed much fine "stuff". IT WORKED! (see third picture) Tank is much clearer. But not "crystal clear" No fish were harmed. So I give it five stars.

Cloudiness can have many causes and can be hard to deal with. Epecting this one inexpensive solution to do the whole job in most cases isn't realistic. In my case, I know there is more for me to do. Partial water changes more often. Less food. Leave the light on much less. It may be a bacterial problem and my HOB filter's bag of biological pellets may have been messed up (out of the water too long) a few weeks ago. Extreme water changes could be the wrong thing to do. It may clear up in another week or two. Patience.
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Customer image Customer image Customer image
Customer imageCustomer imageCustomer image
5 people found this helpful
Report
Reviewed in the United States on August 11, 2023
Size: 3.38 OzVerified Purchase
One person found this helpful
Report
Reviewed in the United States on October 8, 2022
Size: 3.38 OzVerified Purchase
5 people found this helpful
Report
Reviewed in the United States on February 13, 2024
Size: 3.38 OzVerified Purchase
Reviewed in the United States on June 20, 2020
Size: 8.45-OunceVerified Purchase
One person found this helpful
Report

Top reviews from other countries

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Francisco Manuel Ruiz Neira
5.0 out of 5 stars Muy buen producto cl
Reviewed in Mexico on August 21, 2023
Size: 8.45-OunceVerified Purchase
Gloria navarrete
5.0 out of 5 stars Me encanta
Reviewed in Mexico on August 8, 2023
Size: 3.38 OzVerified Purchase
MG
5.0 out of 5 stars Excelente producto
Reviewed in Mexico on April 10, 2017
Size: 8.45-OunceVerified Purchase
Ana Sofía
1.0 out of 5 stars Mato a mi pez
Reviewed in Mexico on June 23, 2023
Size: 8.45-OunceVerified Purchase