---
product_id: 18714180
title: "Kanaplex, 5 g(0.18 oz)"
brand: "seachem"
price: "€ 20.12"
currency: EUR
in_stock: true
reviews_count: 13
category: "Seachem"
url: https://www.desertcart.be/products/18714180-kanaplex-5-g-0-18-oz
store_origin: BE
region: Belgium
---

# Absorbed via skin & gills Targets fungal & bacterial infections Filter bed safe & carbon removable Kanaplex, 5 g(0.18 oz)

**Brand:** seachem
**Price:** € 20.12
**Availability:** ✅ In Stock

## Summary

> 💥 Heal your aquatic ecosystem like a pro—because your fish deserve the best!

## Quick Answers

- **What is this?** Kanaplex, 5 g(0.18 oz) by seachem
- **How much does it cost?** € 20.12 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/18714180-kanaplex-5-g-0-18-oz)

## Best For

- seachem enthusiasts

## Why This Product

- Trusted seachem brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Eco-Friendly Formula:** Preserves beneficial filter bacteria and is easily eliminated with activated carbon.
- • **Trusted by Aquarists:** Top-rated with thousands of 5-star reviews praising fast, visible fin regrowth and vitality boosts.
- • **Effortless Absorption:** No ingestion needed—meds penetrate through skin and gills for rapid healing.
- • **Broad-Spectrum Defense:** Clinically proven to combat dropsy, popeye, fin/tail rot, and septicemia with precision.
- • **Versatile Aquarium Use:** Perfectly safe for both freshwater and marine tanks, including sensitive invertebrates.

## Overview

Kanaplex is a kanamycin-based powdered medication designed for freshwater and marine aquaria. It treats multiple fungal and bacterial fish diseases by absorption through skin and gills, eliminating the need for ingestion. Safe for filter bacteria and invertebrates, it’s easily removed with carbon filtration, making it a top choice for effective, eco-conscious fish health management.

## Description

KanaPlex™ 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. To enhance palatability use with GarlicGuard™. Food may be refrozen. For use in freshwater or marine aquaria.

Review: ⭐⭐⭐⭐⭐ Amazing results for my betta’s fin rot - I honestly wasn’t expecting such great results, but this medication exceeded my expectations. My betta fish, Bluey, had a pretty bad case of fin rot, and his fins had several holes and damaged areas. After following the directions and completing the treatment, I started noticing new fin growth. His fins are filling back in beautifully, and the damaged areas have almost completely recovered. Even better, he’s much more active, alert, and seems happier overall. I’m so relieved I found this product. It truly helped my fish recover, and I would definitely recommend it to anyone dealing with fin rot. It made a huge difference for Bluey.
Review: Saved My Guppy Fry - Over 30 one-month-old guppy fry in one of my aquariums started developing needle-like tails. In the morning, I noticed one of my fry had died overnight and several of my fry looked lethargic at the water surface with one fry floating on his side and struggling to remain upright. Now, while I'm no stranger to keeping freshwater fish, I just started keeping guppies a little over a year ago and this is the first time I've seen such a wide-spread infection with such a fast mortality rate. Admittedly, this tank in question was a bit overcrowded, since one of my female guppies gave birth a month ago with a surprisingly large batch of fry (for me at least). Since keeping guppies, finding spare tanks to keep each new batch of fry in has been a bit challenging. After testing the water for ammonia and finding close to 1ppm, I immediately separated four of the most lethargic fry into their own tank (since some of the more healthy-looking fry were trying to eat them) and spent the next two days performing large water changes. The fry only got worse, now with almost all of the fry displaying pointed needle-like tail fins even though water quality had considerably improved with 0 ammonia and nitrite. And sadly, another two fry that I had separated the first day hadn't made it. I was now left with one really sick fry (in the separate tank) and 28 less-than-active fry who looked like they were only getting sicker. A few weeks ago, I had purchased some Kanaplex to try for a just-in-case situation like this when time would be crucial. I had never used Kanaplex before, but I had lost some fish in the past because I wasn't able to get the medication quickly enough. I liked that this medication doesn't destroy the good beneficial bacteria in the filter bed, but I was very hesitant about using this in my fry tank because of how young and weak my fry were - I wasn't sure if they'd be able to handle medication. But I figured, they were already suffering and going to die if I just did nothing more than change the aquarium water, so I put some in and hoped for the best. Two days later, I already started to see some improvement. My fry were swimming more actively and I noticed some of them were starting to spread out their fins more. The lone fry in the really sick tank still looked somewhat the same to me, though he wasn't flipped over and paralyzed like many of his brothers who had died were. He was still swimming around the surface, moving his fins, so I thought that was a good sign. The best news was that I had lost no more fry since treating both aquariums. I had thought I would soon have a massive fry death on my hands, so that alone was something to celebrate. Following the instructions, I treated both tanks with the second dose of Kanaplex on the third day. Every day, the fry seemed to be doing better and better. Today on day 5, all 28 fry in the healthier tank are very active, eating as usual with fins fully expanded. Just looking at them, you would've never known they were sick! The lone fry in the separate tank is also doing very well. Just yesterday, he started eating for the first time since the infection. While his tail fin still looks somewhat pointy, the milky white film on it is nearly gone and it's no longer as clamped. I also noticed he's been spending less time on the surface and more time moving around the aquarium! Before I had little hope he'd make it and now I really do think he'll make a full recovery. I just added the third and last dose to the tank. I'm really looking forward to adding the lone fry back into the tank with his brothers and sisters. I also bought a larger aquarium to house these fry once they get bigger. Very happy with the results I've received from Kanaplex.

## Features

- For use in freshwater or marine aquaria.
- Easily absorbed through both skin and gills; ingestion not required.
- Does not adversely affect the filter bed and is easily removed with carbon.
- Safely and effectively treats several fungal, and bacterial fish diseases (dropsy, popeye, fin/tail rot, septicemia).
- When used in a medicated food mix, it is excellent for treating bacterial infections in tanks that contain invertebrates.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00CJ0VY8G |
| Best Sellers Rank | #1,754 in Pet Supplies ( See Top 100 in Pet Supplies ) #6 in Aquarium Water Treatments |
| Brand | Seachem |
| Brand Name | Seachem |
| Customer Reviews | 4.6 out of 5 stars 3,969 Reviews |
| Included Components | treats several fungal, and bacterial fish diseases |
| Item Form | Powder |
| Item Weight | 1.12 ounces |
| Liquid Volume | 5 ml |
| Manufacturer | Seachem |
| Manufacturer Part Number | 881 |
| Model Number | 881 |
| Number of Packs | 1 |
| Pet Type | Fish |
| Target Species | Fish |
| UPC | 000116088107 |
| Unit Count | 18 Fluid Ounces |

## Product Details

- **Brand:** Seachem
- **Item Form:** Powder
- **Item Weight:** 1.12 ounces
- **Liquid Volume:** 5 ml
- **Number of Packs:** 1

## Images

![Kanaplex, 5 g(0.18 oz) - Image 1](https://m.media-amazon.com/images/I/71caCatjLCL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: How many gallons does one container treat? I need to treat 240 gallons.**
A: Each level scoop is 125mg and treats 5 gallons for 1 day's dose. There are 40 scoops in the 5 gm vial.  5 grams would treat 200 gallons for 1 day's dose.

**Q: Hi! my betta got popeyes. i bought this but don't know how to use it. it says it goes with frozen food paste.could you tell me where to get the food?**
A: as per the manufacturer......KanaPlex™ is a blended kanamycin based medication that safely and effectively treats several fungal, and bacterial fish diseases (dropsy, popeye, fin/tail rot, septicemia). 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. When used in a medicated food mix, it is excellent for treating bacterial infections in tanks that contain invertebrates. For use in freshwater or marine aquaria.Types of Infections TreatedParasitic	Fungal	Bacterial	ViralKanaPlex				DirectionsDosing in WaterRemove all invertebrates - these are extremely sensitive to medication. Turn off UV filters, ozone filters, and remove chemical filtration like MatrixCarbon™ and Purigen™. Use 1 measure (included) per every 20 L (5 gallons). Repeat this dose every 48 hours to a maximum of 3 doses. In cases of severe infections, it is possible to carry out two rounds of treatment back-to-back. However, this should only be done if fish show no signs of stress at the end of the first round.Dosing in FoodFeed the medicated food mix (recipe below) every day until the infection clears or up to 1 week. This medicated food can be refrigerated or frozen between feedings.1 scoop KanaPlex1 scoop Focus™1 tbsp food (preferably pellets or frozen food)A few drops of water if using a dry foodTo enhance palatability use with GarlicGuard™ or Entice™.After TreatingWhen the treatment period is over, MetroPlex™ can easily be removed using activated filter carbon like MatrixCarbon™. It does not linger in the substrate or filter media of the tank.

**Q: Do you have to treat food with it to administer or can I just treat the water directly?**
A: The manufacturer instructions are: "Use 1 level measure (included) to every 20 L (5 gallons). 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 Focus™. To enhance palatability use with GarlicGuard™ or Entice™. Food may be refrozen.Active ingredients: kanamycin sulfate (32%) Inactive ingredients: excipients (68%)"

**Q: Is this enough to treat a 29g tank 3 times?**
A: Yes, I personally was able to treat my 55g tank with it at least three times.

## Customer Reviews

### ⭐⭐⭐⭐⭐ ⭐⭐⭐⭐⭐ Amazing results for my betta’s fin rot
*by S***A on June 19, 2026*

I honestly wasn’t expecting such great results, but this medication exceeded my expectations. My betta fish, Bluey, had a pretty bad case of fin rot, and his fins had several holes and damaged areas. After following the directions and completing the treatment, I started noticing new fin growth. His fins are filling back in beautifully, and the damaged areas have almost completely recovered. Even better, he’s much more active, alert, and seems happier overall. I’m so relieved I found this product. It truly helped my fish recover, and I would definitely recommend it to anyone dealing with fin rot. It made a huge difference for Bluey.

### ⭐⭐⭐⭐⭐ Saved My Guppy Fry
*by C***W on April 8, 2016*

Over 30 one-month-old guppy fry in one of my aquariums started developing needle-like tails. In the morning, I noticed one of my fry had died overnight and several of my fry looked lethargic at the water surface with one fry floating on his side and struggling to remain upright. Now, while I'm no stranger to keeping freshwater fish, I just started keeping guppies a little over a year ago and this is the first time I've seen such a wide-spread infection with such a fast mortality rate. Admittedly, this tank in question was a bit overcrowded, since one of my female guppies gave birth a month ago with a surprisingly large batch of fry (for me at least). Since keeping guppies, finding spare tanks to keep each new batch of fry in has been a bit challenging. After testing the water for ammonia and finding close to 1ppm, I immediately separated four of the most lethargic fry into their own tank (since some of the more healthy-looking fry were trying to eat them) and spent the next two days performing large water changes. The fry only got worse, now with almost all of the fry displaying pointed needle-like tail fins even though water quality had considerably improved with 0 ammonia and nitrite. And sadly, another two fry that I had separated the first day hadn't made it. I was now left with one really sick fry (in the separate tank) and 28 less-than-active fry who looked like they were only getting sicker. A few weeks ago, I had purchased some Kanaplex to try for a just-in-case situation like this when time would be crucial. I had never used Kanaplex before, but I had lost some fish in the past because I wasn't able to get the medication quickly enough. I liked that this medication doesn't destroy the good beneficial bacteria in the filter bed, but I was very hesitant about using this in my fry tank because of how young and weak my fry were - I wasn't sure if they'd be able to handle medication. But I figured, they were already suffering and going to die if I just did nothing more than change the aquarium water, so I put some in and hoped for the best. Two days later, I already started to see some improvement. My fry were swimming more actively and I noticed some of them were starting to spread out their fins more. The lone fry in the really sick tank still looked somewhat the same to me, though he wasn't flipped over and paralyzed like many of his brothers who had died were. He was still swimming around the surface, moving his fins, so I thought that was a good sign. The best news was that I had lost no more fry since treating both aquariums. I had thought I would soon have a massive fry death on my hands, so that alone was something to celebrate. Following the instructions, I treated both tanks with the second dose of Kanaplex on the third day. Every day, the fry seemed to be doing better and better. Today on day 5, all 28 fry in the healthier tank are very active, eating as usual with fins fully expanded. Just looking at them, you would've never known they were sick! The lone fry in the separate tank is also doing very well. Just yesterday, he started eating for the first time since the infection. While his tail fin still looks somewhat pointy, the milky white film on it is nearly gone and it's no longer as clamped. I also noticed he's been spending less time on the surface and more time moving around the aquarium! Before I had little hope he'd make it and now I really do think he'll make a full recovery. I just added the third and last dose to the tank. I'm really looking forward to adding the lone fry back into the tank with his brothers and sisters. I also bought a larger aquarium to house these fry once they get bigger. Very happy with the results I've received from Kanaplex.

### ⭐⭐⭐⭐⭐ 😍
*by L***N on July 21, 2026*

This product saved my betta fish. She was floating towards the ground a lot, she quit eating and stopped responding to me so I used this for 3 days and she’s back to the way she was! She is eating and very active.

## Frequently Bought Together

- Kanaplex, 5 g(0.18 oz)
- API AQUARIUM SALT Freshwater Aquarium Salt 36-Ounce Box
- API MELAFIX Freshwater Fish Bacterial Infection Remedy 16-Ounce Bottle

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*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-08-05*