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.

4 stars out of 332 reviews
(4.0)|
332 ratings

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.
Current price is $4.48$2.65/fl oz
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Customer ratings & reviews

4 out of 5 stars
stars332 ratings140 reviews
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Reviews summary

Pros
  • : Produces transparent water quickly.
  • : Offers affordable options compared to similar products.
  • : Product has an attractive and modern look.
Neutral
  • : Can be effective, but may require frequent maintenance.
Cons
  • : Fails to significantly reduce algae growth in aquariums.
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Showing 1-3 of 140 reviews

Nov 11, 2025
Lonzo
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Shalom. as long as you read the directions it's pretty straightforward and understanding the size of your tank. the positive about this is that it actually does prolong the water change or rather than need for a water change. however it can also make you lackadaisical about cleaning the tank as you can get completely lost in time because the water looks clear. I noticed it was over a month before I changed the water and the only reason why I changed it was because I noticed that discoloration in the sand and not actually on the glass or even that much in the water.

Helpful?1874cb80-0887-11f0-9324-cdfba8423f8610313013
Jan 16, 2026
Tonya
Item details
Multipack quantity: 3
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
Mar 28, 2025
Shasta
Item details
Multipack quantity: 3
5 out of 5 stars review

Verified Purchase

Leave the light off!!

Hey!!! This works when you leave the light off!! Just a couple days! Only turning the light on when FEEDING. Then right back off! Crystal clear!! Sorry algae eaters!!

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