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Seachem Laboratories Kanaplex Antibiotic - 5 Grams


Item #: SC08810

In Stock

KanaPlexTM is a blended kanamycin based medication that safely and effectively treats several fungal, and bacterial fish diseases (dropsy, popeye, fin/tail rot, septicemica). Because it is absorbed by fish it is useful in treating internal infections in those situations where food is refused. It does not adversely affect the filter bed and is easily removed with carbon. Usual dose is 360 mg/40 L (10?gallons). Contains kanamycin sulfate, potassium sulfate

DIRECTIONS: Use 1 level measure (180 mg) for every 20L (5 gallons). Measurer included. Repeat every 2 days until symptoms disappear or up to a maximum of 3 doses. Turn off UV, ozone, and chemical filtration. To feed, blend 1 measure with about 1 tablespoon of frozen food paste. To minimize loss during feeding use with Seachem Focus. Food may be refrozen.

  • i5 g / 0.2 oz (Treats 600 L (160 US Gallons))

Manufacturer information

Seachem Laboratories, Inc. was established in 1980 by Dr. Leo G. Morin. Seachem moved into a state of the art 110,000 square foot facility in Madison, Georgia marking their 25th anniversary in the industry in 2005. This facility includes production and research laboratories, manufacturing, inventory, shipping, and office space.

5 Stars


Reviewed on
October 10, 2020

Yes, I would recommend this.

Worked for me

Pros: Easy to mix with food

Cons: None

I mixed this to metroplex and focus. This worked for some fin tears etc and as a preventative.

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Reviewed on
April 04, 2019

Yes, I would recommend this.

Seachem Laboratories Kanaplex - 5 Grams

Pros: Can combine with food

Cons: Powder form

I use this when my fish are in quarantine as a preventative measure. Combine with Metroplex and Focus.

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Reviewed on
September 28, 2017

No, I would not recommend this.

Fault manufacturer

Pros: Fault manufacturer

Cons: Need to be replacement for customer

I love to use seachem product. I got just 1/4 bottle. I saw the bottle still in sealed from factory. I do not know it work or not, but have to use, because my fish sick. I do not have chance to contact seachem or return product. What is wrong ? I got other seachem product 5g but almost full bottle.

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Reviewed on
August 26, 2017

Yes, I would recommend this.

It Works!

Pros: It works in display tank when added to food

Cons: May cloud water a little

For the first time in over 20 years in this hobby, I got a fish that had popeye and internal worms. This stuff works. I added it to the food. Cleared it right up.

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Reviewed on
May 22, 2017

Yes, I would recommend this.

One betta needs it

Pros: Has worked for my betta

Cons: Takes some time to fully dissolve

I rescued a betta last year who had all its fins disintegrated. Since then, he goes in cycles, about 3 months of healing & doing well, then it hits him again almost overnight despite weekly water changes, Stress Guard & Prime. Water levels all show great time and again, no high ammonia or nitrates ect... so its the betta.

For my 2.5 gal tank, I use one half of the enclosed spoon, FULLY dissolved in another cup of warm water: then it goes in the tank no more than 3 days/doses. I also give a squirt of the StressGuard as well. Once the med is in the tank , I put my betta in a 20 ounce plastic tub, filled with tank water and float it on the surface as w/no fins, its difficult to swim/get air.

The product works but I cant figure what internally is going on, so I keep it on hand. This guy has 9 lives.

I have been spending a fortune on medication locally, I can say this price is SUPERB and the quick delivery was equally awesome!

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Reviewed on
May 20, 2017

Yes, I would recommend this.

Proven produced

Pros: Seachem trusted company

Cons: If you need it then that's a con

Kanamycin is a gram neg wide spectrum antibiotic most bacteria that infect or fish are gram neg so this is a good choice for aquarists treating an infection that there really not sure what it is. Plus it can be used with a lot of other meds

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Reviewed on
January 15, 2017

Yes, I would recommend this.

Broad spectrum

This antibiotic is ideal for use with Focus to feed to sick fish. This way you can treat a fish while in a reef tank without harming corals.

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brian gilbert

Reviewed on
October 27, 2016

Yes, I would recommend this.


I have used this many times over after treating for parasites. Copper or chloroquine usually leaves a few with a bacterial infection. In a food mix seems quicker to see results but either way works.

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