---
product_id: 314485778
title: "Seachem KanaPlex Size: 100 g, Treats Fungal and Bacterial Fish Diseases"
brand: "seachem"
price: "A$188"
currency: AUD
in_stock: true
reviews_count: 8
category: "Seachem"
url: https://www.desertcart.com.au/products/314485778-seachem-kanaplex-size-100-g-treats-fungal-and-bacterial-fish
store_origin: AU
region: Australia
---

# Safe for freshwater & marine use Absorbed via skin & gills for internal treatment 100g large size for big tanks Seachem KanaPlex Size: 100 g, Treats Fungal and Bacterial Fish Diseases

**Brand:** seachem
**Price:** A$188
**Availability:** ✅ In Stock

## Summary

> 🛡️ Defend your aquatic community with Seachem KanaPlex — the ultimate fish health guardian!

## Quick Answers

- **What is this?** Seachem KanaPlex Size: 100 g, Treats Fungal and Bacterial Fish Diseases by seachem
- **How much does it cost?** A$188 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/314485778-seachem-kanaplex-size-100-g-treats-fungal-and-bacterial-fish)

## 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

- • **Bulk Size Advantage:** 100g pack ensures you’re always stocked for large tanks or ponds—never caught unprepared.
- • **Tank-Friendly Formula:** Does not harm beneficial filter bacteria and is easily removed with activated carbon.
- • **Non-Ingestive Absorption:** Absorbed through fish skin and gills, ideal when fish refuse medicated food.
- • **Versatile Aquarium Compatibility:** Perfectly safe for both freshwater and marine environments, including tanks with invertebrates.
- • **Powerful Broad-Spectrum Treatment:** Effectively combats fungal & bacterial infections like dropsy, popeye, and fin rot.

## Overview

Seachem KanaPlex is a 100g kanamycin-based granular medication designed to treat a wide range of fungal and bacterial diseases in freshwater and marine fish. Its unique absorption through skin and gills allows effective treatment even when fish refuse food. Safe for filter beds and invertebrates, it’s easily removed with activated carbon, making it a trusted choice for large aquaria and ponds.

## Description

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. Indications KanaPlex™ is appropriate for treating a variety of fungal, and bacterial fish diseases. Below are some of the more common diseases treatable with KanaPlex™. Be aware that many diseases and infections share similar physical and behavioral symptoms, e.g. clamped fins, lesions, loss of appetite. Popeye Cloudy Eye Fin Rot Hemorrhagic Septicemia Dropsy Mouth Rot

Review: Love the larger size!! - I have a 270 gal soft tank full of Congo and Buenos Aires Tetras, Rainbow Fish and Coridoras. Various plants, driftwood dwarf shrimp and snails... I haven't ever had any issues with illness in this tank previously and it has been going for a while. Unfortunately, I had to strip it down when we moved to our new house that we just finished remodeling. I tried to preserve the cycle as best as I could but by the time it was up and running again I was basically starting over with it. Even with the help of FritzZyme 7 it still took a month to safely get everything mostly back in balance, I am still dealing with brown and hair algae now almost 3 months after moving. With everything that happened I ended up with an outbreak of Columnaris that didn't respond to medicated food Ask had hoped. While I ended up loosing my rainbow shark and my school of SAE's, I have only lost couple of the dwarf rainbowfish and 1 of my Buenos Aires Tetras so far. This has been a nightmare, I didn't have enough meds on hand to treat the whole tank, only enough to treat my smaller 30 quarantine tank regularly. I didn't realize that something like that could take over a tank that hadn't had any new fish or plants introduced... Lesson learned! My only annoyance is the tiny scoop for the meds.... I used it to measure into a measuring spoon how much medicine was needed to treat my while tank, as it turns out a level tablespoon, lightly scooped not packed, is perfect for 270 gallons... At least by my plastic set I have for use with my fish stuff. This stuff has been a lifesaver. I had dropped my tank temp down to 72° to slow down the illness. I am on dose 2 of round 2 of treatment and the cotton-y tufts have been gone for a few days but I decided to go ahead and do 2 complete rounds of 3 doses to be sure it's done for. Everyone has responded well, I slowly started raising the temp back up to 78° after the first round was done. Hopefully I don't have to deal with this again, but if I do I know where to go. I had no idea Kanaplex came in large quantities like this and I will just start buying it this way. Definitely a must for anyone with a large set up!
Review: Cheaper for a large tanks or small ponds - Three of my fantail goldfish have dropsy. This larger size works for me because it's a 450 gallon pond. I use 13 ml to 18 ml for each treatment every other day. So far seems to be working well. I'm not as committed to the 25% water change each time so my results might not be as good as they could be. Will let you know.

## Features

- User-Friendly: Does not adversely affect the filter bed and is easily removed with activated carbon.
- Application: Suitable for use in both freshwater and marine aquaria.
- Absorption Method: Can be absorbed through both the skin and gills of fish, making it effective for treating internal infections without the need for ingestion.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B006OOPGOQ |
| ASIN  | B006OOPGOQ |
| Best Sellers Rank | #32,487 in Pet Supplies ( See Top 100 in Pet Supplies ) #304 in Aquarium Water Treatments |
| Brand Name | Seachem |
| Color | Wite |
| Customer Reviews | 4.4 4.4 out of 5 stars (49) |
| Date First Available | December 12, 2012 |
| Date First Available  | December 12, 2012 |
| Directions | Use 1 level spoonful (180 mg) for every 20 L (5 gallons). Repeat every 2 days as required 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. Food may be refrozen. |
| Included Components | Granules |
| Item Package Dimensions L x W x H | 4.88 x 2.24 x 2.2 inches |
| Item Weight | 100 Grams |
| Item model number | SC KanaPlex 100g |
| Item model number  | SC KanaPlex 100g |
| Manufacturer | ROYAL PET PRODUCTS |
| Manufacturer  | ROYAL PET PRODUCTS |
| Model Name | Seachem KanaPlex 100g |
| Number of Items | 1 |
| Package Dimensions  | 4.88 x 2.24 x 2.2 inches; 3.53 ounces |
| Specific Uses for Product | Indoor |
| Target Audience Keyword | fish |

## Product Details

- **Brand:** Seachem
- **Item Form:** Paste
- **Item Weight:** 100 Grams
- **Liquid Volume:** 5 Gallons
- **Manufacturer:** ROYAL PET PRODUCTS

## Images

![Seachem KanaPlex Size: 100 g, Treats Fungal and Bacterial Fish Diseases - Image 1](https://m.media-amazon.com/images/I/61gprz4RfUL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Love the larger size!!
*by A***N on March 26, 2025*

I have a 270 gal soft tank full of Congo and Buenos Aires Tetras, Rainbow Fish and Coridoras. Various plants, driftwood dwarf shrimp and snails... I haven't ever had any issues with illness in this tank previously and it has been going for a while. Unfortunately, I had to strip it down when we moved to our new house that we just finished remodeling. I tried to preserve the cycle as best as I could but by the time it was up and running again I was basically starting over with it. Even with the help of FritzZyme 7 it still took a month to safely get everything mostly back in balance, I am still dealing with brown and hair algae now almost 3 months after moving. With everything that happened I ended up with an outbreak of Columnaris that didn't respond to medicated food Ask had hoped. While I ended up loosing my rainbow shark and my school of SAE's, I have only lost couple of the dwarf rainbowfish and 1 of my Buenos Aires Tetras so far. This has been a nightmare, I didn't have enough meds on hand to treat the whole tank, only enough to treat my smaller 30 quarantine tank regularly. I didn't realize that something like that could take over a tank that hadn't had any new fish or plants introduced... Lesson learned! My only annoyance is the tiny scoop for the meds.... I used it to measure into a measuring spoon how much medicine was needed to treat my while tank, as it turns out a level tablespoon, lightly scooped not packed, is perfect for 270 gallons... At least by my plastic set I have for use with my fish stuff. This stuff has been a lifesaver. I had dropped my tank temp down to 72° to slow down the illness. I am on dose 2 of round 2 of treatment and the cotton-y tufts have been gone for a few days but I decided to go ahead and do 2 complete rounds of 3 doses to be sure it's done for. Everyone has responded well, I slowly started raising the temp back up to 78° after the first round was done. Hopefully I don't have to deal with this again, but if I do I know where to go. I had no idea Kanaplex came in large quantities like this and I will just start buying it this way. Definitely a must for anyone with a large set up!

### ⭐⭐⭐⭐⭐ Cheaper for a large tanks or small ponds
*by O***S on January 4, 2026*

Three of my fantail goldfish have dropsy. This larger size works for me because it's a 450 gallon pond. I use 13 ml to 18 ml for each treatment every other day. So far seems to be working well. I'm not as committed to the 25% water change each time so my results might not be as good as they could be. Will let you know.

### ⭐⭐⭐⭐⭐ It works
*by C***S on January 20, 2026*

Works great

## Frequently Bought Together

- Seachem KanaPlex Size: 100 g, Treats Fungal and Bacterial Fish Diseases
- Seachem 3 Pack of Focus Freshwater and Marine Fish Medication, 5 Grams Per Pack
- Seachem MetroPlex 5 g / 0.2 oz. for Marine & Saltwater Reef Aquariums!

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-01-24*