Tetra AlgaeControl Freshwater Aquarium Algaecide, 3.38-oz bottle

By Tetra
Rated 3.6857 out of 5 stars
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About This Item

  • Broad spectrum algae remover
  • Removes and prevents return
  • Safe for use in planted aquariums unlike most products
  • Treats glass, filters, décor everything will be squeaky clean
  • With precision dropper

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Fish TypeTropical FreshwaterGoldfish, Tropical Freshwater, Marine Fish...Tropical Freshwater, Betta, Cichlid, GoldfishTropical FreshwaterTropical Freshwater
Aquarium TypeFreshwaterFreshwater, SaltwaterFreshwaterFreshwaterFreshwater

Questions & Answers

18 Customer Questions


Is this safe to use in my betta fish tanks?
Answer by ChewyFeb 12, 2018
The Algaecide can be used in a betta fish tank.

Can this be used with the fish still in the tank and what happens if I use one drop in my 2.5 gallon tank? I only have a betta tank.
Answer by ChewyNov 15, 2017
This product can be used while fish are still inside the tank as long as proper dosing is administered.

Is this safe for bottom feeders like Corydoras Catfish or Sucker Catfish?
Answer by ChewyJul 19, 2018
This product is not recommended for scaleless fish. Tetra recommends their Tetra Pond Barley & Peat Extract Clear Water Treatment for cases involving scaleless or sensitive fish.

How long should you wait after first treatment of using Tetra algaecide to treat again
Answer by ChewyMar 18, 2021
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.


ReviewsWrite a Review

3.7
Rated 3.6857 out of 5 stars
35 Reviews
83%
Would recommend to a friend
1
20
20%
2
8.5714
9%
3
8.5714
9%
4
8.5714
9%
5
54.2857
54%

35 Customer Reviews


Filter by reviews that mention

Rated 5 out of 5 stars
By Fishnana on Aug 7, 2022

Excellent!

Super easy to order, phenomenal fast delivery! (On a Sunday!) Product works great!


Rated 5 out of 5 stars
By Vance on Jan 26, 2021

Great so far

I had terrible brown algae. A tank cleaning worked for a week and it was back. I tried this product and after a second application my tank has been crystal clear. Fish seem to be fine.


Rated 1 out of 5 stars
By jimmy on Apr 12, 2021

product does not work

Product does not work at all. Used product as instructed but showed no results!


Rated 5 out of 5 stars
By ATurner on Apr 25, 2021

Cleared water quickly

Turned green water into crystal clear in under 24 hours!


Rated 2 out of 5 stars
By Tapioca on Jan 15, 2021

Algae cleaner ? ?

I am disappointed at this product. I have used several Tetra products....this one DOES NOT do as advertised.


Rated 1 out of 5 stars
By Marianne on Aug 4, 2020

Unable to use

I was looking forward to trying this in my tank to help control some of the excess algae, but was unable to use it as I have crustaceans and invertebrates in my tank. I wish the information on the website would have listed this as an issue.


Rated 1 out of 5 stars
By Al1618 on Aug 18, 2020

Wrong type of algae remover

Thought all algae remover might work . WRONG Will never purchase this type of algae remover again , as it doesn’t work


Rated 5 out of 5 stars
By Kitty66 on Oct 24, 2020

Works good

It took a few days for green water to clear but it does work.


Rated 2 out of 5 stars
By Anniede on Apr 23, 2020

Did not work for me

I saw no improvement with this. Arizona water is not the greatest and I have some major algae growth at times and this made no difference in treated tanks even after repeating treatments and large water changes. My water comes from a holding tank and may be too complex for this to handle.


Rated 5 out of 5 stars
By linda on Aug 15, 2020

Algae control

Great - really works - my fish are much happier - tank stays clean longer!