Kordon Ich Attack Aquarium Ich Treatment, 4-fl oz bottle

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About This Item

Details

  • Formulated to prevent and drive out a range of infections.
  • Delivers protection against external diseases from fungus, dinoflagellates, ich, and other protozoans.
  • Safe for use in aquariums housing plants, eggs, and reef environments.
  • Treatment can be used in both saltwater and freshwater habitats.
  • Formula is also super safe for invertebrates.

Instructions

Frequently bought together

Questions & Answers

6 Customer Questions

How much do I need for a 50 gallon fish tank?

Is this safe for a pond?

Answer by Chewy • May 28, 2022
Ich-Attack is safe for use in all kinds of aquariums and ornamental ponds, as well as on scaleless fishes (such as loaches, elephant noses, electric eels, knife fishes and catfishes), coral reef fishes, young fish and fry, reef aquariums, aquatic plants, aquatic invertebrates (such as snails, crustaceans, corals and sea anemones), amphibians and aquatic reptiles.

Will this kill off an existing ich infestation?

Answer by Chewy • Dec 15, 2021
Kordon Ich-Attack is effective as a treatment for external diseases, abrasions and wounds caused by protozoans, fungi, and dinoflagellates. Often there is a combination of these infections, for which Ich-Attack is a suitable treatment for all of them. It is also effective as a disease preventative for stressed fish, such as for those in quarantine, and as a disease inhibitor when netting, handling or adding new fishes, amphibians, and aquatic reptiles such as turtles.

will it hurt small African frogs ?

Answer by Chewy • Oct 03, 2021
Ich-Attack is safe for use in all kinds of aquariums and ornamental ponds, as well as on scaleless fishes (such as loaches, elephant noses, electric eels, knife fishes and catfishes), coral reef fishes, young fish and fry, reef aquariums, aquatic plants, aquatic invertebrates (such as snails, crustaceans, corals and sea anemones), amphibians and aquatic reptiles.
Reviews
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4.1
Rated 4.1 out of 5 stars
20 Ratings
Terms & Conditions

10 Customer Reviews

Rated 3 out of 5 stars
By CareyG on Dec 15, 2025

If you've got shrimp, etc. this is a good option to try

I've use this because I have shrimp, snails and a few other sensitive fish that would react poorly to REAL medication (like Kordon Rid Ich Plus) Honestly, I've gotten

I've use this because I have shrimp, snails and a few other sensitive fish that would react poorly to REAL medication (like Kordon Rid Ich Plus) Honestly, I've gotten mixed results. I still keep some on hand though.

Rated 1 out of 5 stars
By jennifer on Oct 16, 2025

Opened bottles

We bought a few. One of the bottles came opened. So we asked for a replacement. The replacement had the same issue.

We bought a few. One of the bottles came opened. So we asked for a replacement. The replacement had the same issue.

Rated 4 out of 5 stars
By Mardi on Mar 1, 2025

Seems to do the trick

Seems to work, which is great. Only downfall is that it turns the water pretty brown. Shrimp and snail and fish safe.

Seems to work, which is great. Only downfall is that it turns the water pretty brown. Shrimp and snail and fish safe.

Rated 5 out of 5 stars
By Anthony on Nov 5, 2024

Excellent

Just what I needed to treat my tank

Just what I needed to treat my tank

Rated 5 out of 5 stars
By Ed on Mar 18, 2024

Kordon Ich

Followed directions & ich was cured within 7 days

Followed directions & ich was cured within 7 days

Rated 5 out of 5 stars
By mike on May 24, 2023

Kordon Ich Attack Aquarium Ich Treatment

100% the best!!! Get rid of that nasty old Ich with this stuff!

100% the best!!! Get rid of that nasty old Ich with this stuff!

Rated 4 out of 5 stars
By Reyla on Jan 14, 2023

It worked!

Most of my fish survived, it does say in the fine print that any fish that already have bad ich when this is added will still die and those ones did, but the rest

Most of my fish survived, it does say in the fine print that any fish that already have bad ich when this is added will still die and those ones did, but the rest were spared so I'll consider that a win, all my snails survived even strong doouble doses

Rated 4 out of 5 stars
By Clarence on Nov 21, 2022

Works well

I like the fact it doesn't stain plants or rocks. Seems to have worked but took almost 5 treatments before I noticed the white was gone

I like the fact it doesn't stain plants or rocks. Seems to have worked but took almost 5 treatments before I noticed the white was gone

Rated 5 out of 5 stars
By Fish on Apr 12, 2022

Awesome product

This worked fast and effectively. I liked that I didn’t need to do a water change every time I dosed the tank.

This worked fast and effectively. I liked that I didn’t need to do a water change every time I dosed the tank.

Rated 1 out of 5 stars
By sls0522 on Aug 6, 2021

kordon ich attack

The fish that were suffering with ich died. I used this product for 4 days, twice a day and seen no improvements. I only bought because it’s supposed to be safe

The fish that were suffering with ich died. I used this product for 4 days, twice a day and seen no improvements. I only bought because it’s supposed to be safe for crabs. It also turns your water a nasty greenish yellow color and has a bad smell.