Algae Control

Product No. 77183

Algae Control™ is rated 3.8 out of 5 by 19.
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Removes unsightly algae fast from your aquarium! Algae Control™ not only combats aquarium algae, it also works to keep it from returning. Algae Control is highly effective against green water (algal blooms), bluegreen algae, diatoms or “brown algae,” hair algae or blanketweed that grow on the glass and décor. Unlike some other products on the market, Tetra Algae Control can be safely used in planted aquariums. Tetra’s precision dropper tops help consumers administer the proper dose to their aquarium. One drop treats one gallon.

This product comes in the following sizes: 1.69 fl oz and 3.38 fl oz
It is a violation of Federal Law to use this product
in a manner inconsistent with its labeling. Before applying, first remove as much algae as possible by cleaning the glass and décor. This allows Tetra® AlgaeControl™ to be its most effective at reducing the remaining algae and inhibiting new algae growth. Remove activated carbon filters for 6-8 hours after dosing. Be prepared to clean out additional algae as it is killed to prevent deterioration of water quality.
Add 1ml of Tetra® AlgaeControl™ for every 12 gallons (45L) of aquarium water. DO NOT OVERDOSE. Adding Tetra® AlgaeControl™ in areas of high water agitation or by pre-diluting Tetra® AlgaeControl™ in a cup of aquarium water will help to distribute the active ingredient. Ensure the aquarium is well aerated.
Repeat if needed every three days for up to three total doses, then clean the aquarium of dead algae, and do a partial water change. For regular maintenance, use as algae starts to reappear.
ATTENTION: Do not use in newly established aquariums less than three months old. Do not use in aquariums with invertebrates or crustaceans e.g. crabs, shrimps, or crayfish.

Causes moderate eye irritation. Avoid contact with eyes, skin or clothing. Wash thoroughly with soap and water after handling and before eating, drinking, chewing gum, using tobacco, or using the toilet.


Do not allow pesticide to enter or run off into storm drains, drainage ditches, gutters or surface waters.

Hold eye open and rinse slowly and gently with water for 15-20 minutes. Remove contact lenses, if present, after 5 minutes, then continue rinsing. Call a poison control center for treatment advice.

Have the product container or label with you when calling a poison control center or doctor, or going for treatment advice. For information concerning the product, call 1-866-823-2749.

Do not contaminate water, food or feed by storage and disposal. Store bottle out of reach of children. Nonrefillable container. Do not reuse or refill this container. Wrap and place in trash or offer for recycling if available.
ACTIVE INGREDIENT: Poly [Oxyethylene (Dimethyliminio)Ethylene (Dimethyliminio) Ethylene Dichloride]: 5.4%
TOTAL: 100.0%
Rated 5 out of 5 by from Amazing! I have been struggling with algae in my tank for a few months despite several 75% water changes. I randomly happened across this product and yesterday I decided to give it a try. I am so glad I did!! My tank is clear and my fish are happy!
Date published: 2019-01-27
Rated 5 out of 5 by from Excellent! Works within 15 minutes! Unbelievable great product!
Date published: 2019-01-23
Rated 5 out of 5 by from Works amazingly!! The fish tank was covered in floating algae and we put in the algae control and in 2 hours the tank was perfectly clean and clear !
Date published: 2018-12-30
Rated 5 out of 5 by from Excellent product! Had a bad brown algae problem in my 20 gallon tank. Bought this product and was very careful with the dosage because the instructions clearly said "Do not overdose." My 8 year old and 2 year old goldfish were completely unaffected by the product, but now have a crystal clear tank. The people who killed their fish probably overdosed the tank. Excellent product!!
Date published: 2018-03-25
Rated 5 out of 5 by from ATTN!! This product clears water immediately. My tank developed serious water cloudiness after a routine gravel vacuuming that I had done a million times before without triggering an algae bloom. As the bloom worsened, I tried less light, more/less water changes, new filters and a handful of products claiming to address blooms. For me, nothing made even a slight difference. One day I tried a small bottle of Tetra AlgaeControl hiding on the store shelf. A long story short, within minutes my tank literally went from a green cloud where I couldn’t see through to the back of the tank, to a perfectly clear environment. Magic in a bottle. I’m posting a review because the internet is filled with suggestions that didn’t work for me and I tried them all. I’m hoping to help others with a viable answer.
Date published: 2017-12-18
Rated 5 out of 5 by from It really works. Strongly recomend it. My aquarium was really much effected by algae. I cleaned aquarium and reduced the light to restrict algae grows but it didn't help much at all. I bought "AlgaeControl" to see whether it will work or not to handle with algae. I was so happy to see very visible effect after even first shot. I added it as described on the bottle three times and have no any problems with algae anymore. Thanks to Tetra "AlgaeContrlo".
Date published: 2017-01-26
Rated 5 out of 5 by from Fish must be tough I read reviews for first time yeterday after looking for dosage online. I have to admitt I have been using product for a year before checking dosage. I have been over doseing big time. Just to control algae on glass. I have had my goldfish for 7 years now they are beautiful. I guess from reading other reviews my goldfish must be tough as nails. Because tetra has no effect on them at all. It does a great job keeping my tank looking great. But also my tap water has clorine in it and that doesn't bother them either.
Date published: 2016-08-06
Rated 5 out of 5 by from Very helpful product I have used this product for a long time with no adverse effect in my aquarium. However, I have not been removing the activated charcoal and now just wondered about that. My question was answered and now I will remove it for a few hours to improve the results of the product.
Date published: 2016-08-05
  • y_2019, m_4, d_21, h_23
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.12
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_19
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  • clientName_tetrafish
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