---
product_id: 3811514
title: "Seachem ParaGuard 250 mL / 8.5 fl. oz."
brand: "seachem"
price: "¥5438"
currency: JPY
in_stock: true
category: "Seachem"
url: https://www.desertcart.jp/products/3811514-seachem-paraguard-250-ml-8-5-fl-oz
store_origin: JP
region: Japan
---

# Safe for marine & freshwater 10% aldehyde blend Parasite & lesion eradication Seachem ParaGuard 250 mL / 8.5 fl. oz.

**Brand:** seachem
**Price:** ¥5438
**Availability:** ✅ In Stock

## Summary

> 🛡️ Protect your aquatic world with science-backed precision!

## Quick Answers

- **What is this?** Seachem ParaGuard 250 mL / 8.5 fl. oz. by seachem
- **How much does it cost?** ¥5438 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/3811514-seachem-paraguard-250-ml-8-5-fl-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

- • **Fish & Filter Friendly:** Non-toxic to fish and filter systems, preserving tank balance
- • **Broad Spectrum Protection:** Eradicates ectoparasites, fungal, bacterial, and viral lesions
- • **Dual Habitat Compatibility:** Perfectly safe for both marine and freshwater tanks
- • **Powerful 10% Aldehyde Formula:** Advanced parasite control without formalin toxicity
- • **Ideal for Quarantine & New Arrivals:** Essential for hospital tanks and community introductions

## Overview

Seachem ParaGuard is a 250 mL liquid aquarium treatment featuring a unique 10% aldehyde-based formula combined with malachite green and protective polymers. It safely eradicates ectoparasites and external fungal, bacterial, and viral lesions in both marine and freshwater fish without altering pH or harming filters. ParaGuard is a non-formalin alternative designed for hospital tanks and new fish introductions, ensuring effective parasite control while maintaining tank health.

## Description

ParaGuard is the only fish and filter safe aldehyde based (10% by weight) parasite control product available. Unlike highly toxic and difficult to use formalin based medications, ParaGuard contains no formaldehyde or methanol and will not alter pH. ParaGuard employs a proprietary, synergistic blend of aldehydes, malachite green, and fish protective polymers that effectively and efficiently eradicates many ectoparasites on fish (e.g. ich, etc.) and external fungal/bacterial/viral lesions (e.g., fin rot). It is particularly useful in hospital and receiving tanks for new fish and whenever new fish are introduced to a community tank. For use in freshwater or marine. ParaGuard is recommended for the treatment of certain diseases in marine and freshwater fish only. It IS NOT recommended for treating any style aquarium containing invertebrates, corals, crustaceans, or elasmobranchs (sharks and rays).

## Features

- Eradicates ectoparasites, fungal, bacterial, viral lesions
- Safe alternative to formalin
- For marine and freshwater use
- Parasite control

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002A5X7I |
| ASIN  | B0002A5X7I |
| Allergen Information | Yam Free |
| Best Sellers Rank | #19,801 in Pet Supplies ( See Top 100 in Pet Supplies ) #163 in Aquarium Water Treatments |
| Brand Name | Seachem |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,625) |
| Date First Available  | October 2, 2001 |
| Global Trade Identification Number | 00000116060608 |
| Item Form | Liquid |
| Item Type Name | aquarium-treatments |
| Item Weight | 8.5 ounces |
| Item model number  | 606 |
| Liquid Volume | 250 ml |
| Manufacturer | Seachem Laboratories, Inc. |
| Manufacturer  | Seachem Laboratories, Inc. |
| Manufacturer Part Number | 606 |
| Model Number | 606 |
| Number of Items | 1 |
| Pet Type | Fish |
| Product Dimensions  | 6.2 x 1.6 x 1.2 inches; 8.5 ounces |
| Target Species | Fish |
| UPC | 000116060608 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Seachem
- **Item Form:** Liquid
- **Item Weight:** 8.5 ounces
- **Liquid Volume:** 250 ml
- **Unit Count:** 1 Count

## Images

![Seachem ParaGuard 250 mL / 8.5 fl. oz. - Image 1](https://m.media-amazon.com/images/I/51-bajdgvWL.jpg)

## Frequently Bought Together

- Seachem ParaGuard 250ml
- Seachem StressGuard Slime Coat Protection - Stress and Toxic Ammonia Reducer 500 ml
- Seachem Prime Fresh and Saltwater Conditioner - Chemical Remover and Detoxifier 500 ml

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-13*