Tetra Algae Control Aquarium Water Treatment, Controls Algae in Aquariums, 1.69 oz.
Tetra Algae Control Aquarium Water Treatment, Controls Algae in Aquariums, 1.69 oz.
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Tetra Algae Control Aquarium Water Treatment, Controls Algae in Aquariums, 1.69 oz.

371 ratings
Tetra Algae Control Aquarium Water Treatment, Controls Algae in Aquariums, 1.69 oz.Tetra Algae Control Aquarium Water Treatment Controls Algae in Aquariums 1 69 oz2 pack Tetra Algae Control Aquarium Water Treatment Controls Algae in Aquariums 1 69 oz3 pack Tetra Algae Control Aquarium Water Treatment Controls Algae in Aquariums 1 69 oz4 pack Tetra Algae Control Aquarium Water Treatment Controls Algae in Aquariums 1 69 oz
Multipack Quantity1

Key item features

  • CONTROLS ALGAE: Liquid formula effectively combats algal blooms that cause green water.
  • KEEPS GLASS AND DÉCOR CLEAN: Works against algae that grow on glass and décor, such as blue-green algae, brown algae, hair algae and blanket weed.
  • SAFE FOR PLANTS AND FISH: Safely use Tetra® Algae Control™ formula in planted aquariums as directed. 
  • USAGE: Use 1 mL for every 12 gallons of aquarium water.
  • APPLY IN THE MORNING: See product label for complete directions.

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Customer ratings & reviews

4.2 out of 5 stars
stars
371 ratings109 reviews
How item rating is calculated
  1. 5 stars70% (259)
  2. 4 stars8% (30)
  3. 3 stars6% (24)
  4. 2 stars3% (10)
  5. 1 star13% (48)

Reviews summary

Pros

  • : The product provides excellent value for money.
  • : Quickly achieves transparency.
  • : Clears algae from fish tanks with a few drops.

Neutral

  • : Can be clear and easy to follow, but may be hindered by small print.
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Showing 1-3 of 109 reviews

Jun 17, 2026
Reviewer name: Lisa
Top Reviewer
Item details
Multipack quantity: 3
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Works well.

Very difficult to read the directions because they're microscopic. Seems to be effective.

Helpful?1874cb80-0887-11f0-9324-cdfba8423f8610313013
May 27, 2026
Reviewer name: anonymous
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

This works really well in a variety of allgaes . Just be sure to do the water change after treatment or your fish will die.

Helpful?1874cb80-0887-11f0-9324-cdfba8423f8610313013
Jan 16, 2026
Reviewer name: Tonya
Top Reviewer
Item details
Multipack quantity: 3
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Good for algae control

Easy to use. Instructions are on the bottle and easy to understand. It has had the algae under control since using it.

Helpful?1874cb80-0887-11f0-9324-cdfba8423f8610313013
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