Tetra AlgaeControl Broad Spectrum Algae Control Water Treatment, 1.69-fl oz bottle

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About This Item

Details

  • Safe for use with fish and plants
  • Treats a broad spectrum of algae
  • Tetra's state of the art formula makes it the most highly concentrated algae control product available on the aquatic market today.
  • Do not use newly established aquariums or with invertebrates
  • A precision dropper top helps you administer the proper dose to your aquarium.

Instructions

Learn More About Tetra From Our Team of Experts

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Questions & Answers

14 Customer Questions

How long after using this can I reintroduce my frogs and snails to my tank?

Answer by Chewy • Mar 01, 2021
Approximately 72 hours after use frogs and snails can be added back into the tank.

Hello, is this safe to use with a fairly large pleco in the tank? Thanks in advance!

Answer by Chewy • Feb 12, 2019
This is safe to use in pleco tanks.

Can fish be in the tank when using this product?

Answer by Chewy • Oct 12, 2022
When used as directed, this treatment is safe to use with ornamental freshwater fish and plants.

Can you use this product with soft water?

Answer by Chewy • Jun 24, 2025
We do not recommend using this in soft water without raising the alkalinity first. Chemicals are less effective in soft water, so they may not work at all. Also, depending on the cause of the soft water, they could react negatively.
Reviews
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4.2
Rated 4.2 out of 5 stars
37 Ratings
Terms & Conditions

10 Customer Reviews

Rated 5 out of 5 stars
By Janessa on Jul 14, 2025

Cleared up the tank so fast!

Have an algae issue due to location of tank. A few drops of this cleared it up and has kept it off the walls of tank. So happy.

Have an algae issue due to location of tank. A few drops of this cleared it up and has kept it off the walls of tank. So happy.

Rated 1 out of 5 stars
By Jolyn on Jun 23, 2025

Algae killer

Killed everything. Fish, snails, algae and all.

Killed everything. Fish, snails, algae and all.

Rated 5 out of 5 stars
By Wilfred on Dec 11, 2023

Algae control

Good product. Worked quicklyu

Good product. Worked quicklyu

Rated 1 out of 5 stars
By Brenda on Oct 13, 2023

Makes my fish crowd into the top corner

Makes my fish ill, threw it away

Makes my fish ill, threw it away

Rated 1 out of 5 stars
By Bonnie on Feb 1, 2022

Algae problem

I have used this product before and have never had a problem before. Now I am. The algae doesn’t seem to be going away. I’ve used it twice and each time removed

I have used this product before and have never had a problem before. Now I am. The algae doesn’t seem to be going away. I’ve used it twice and each time removed all algae that I could from the tank. The next day it’s all coming back. Not sure what to do but I’ll try one more time as the directions say and see if that does the trick. This is algae remover

Rated 5 out of 5 stars
By Dawn on Mar 7, 2021

Crystal clear

Took care of the algae and my tank and ornaments crystal clear and clean

Took care of the algae and my tank and ornaments crystal clear and clean

Rated 5 out of 5 stars
By Denise on Jun 15, 2020

Algae Free Tank

This product works very well when used properly.I have 2 fish tanks and use it in both.To keep the algae in control I use it twice a month.Highly recommend the

This product works very well when used properly.I have 2 fish tanks and use it in both.To keep the algae in control I use it twice a month.Highly recommend the product.

Rated 1 out of 5 stars
By joes on Mar 7, 2019

doesn't work

I've been using this for over a week now but no luck the ALGAE still remains but on the good side it has NOT killed the fish nor the plants :)

I've been using this for over a week now but no luck the ALGAE still remains but on the good side it has NOT killed the fish nor the plants :)

Rated 4 out of 5 stars
By TheRatDragon on Jul 20, 2018
Top 500 Contributor

This is good stuff!

3 of my tanks, a 5 gallon female Betta tank, a 2 gallon male Betta tank, and the tropical community tank (Skirt Tetras, Neon Tetras, Tiger Barbs, GloFish Danios,

3 of my tanks, a 5 gallon female Betta tank, a 2 gallon male Betta tank, and the tropical community tank (Skirt Tetras, Neon Tetras, Tiger Barbs, GloFish Danios, and male Betta), all get a bloom of Brown Algae fairly often, and it is NOT pleasant! This is only used once every 3 days in very small amounts to reduce all the crud buildup on your tank glass, ornaments, plants, and filter cartridges! I definitely recommend this! ~TheFishCake

Rated 1 out of 5 stars
By Kimmi on May 30, 2018

I wouldnt Recommend this product

Not sure but I put 10 drops in my 10 gallon fish tank with three goldfish, it made them all sick of a died ?

Not sure but I put 10 drops in my 10 gallon fish tank with three goldfish, it made them all sick of a died ?