---
product_id: 3811514
title: "ParaGuard 250ml"
brand: "seachem"
price: "$U1576"
currency: UYU
in_stock: true
reviews_count: 8
category: "Seachem"
url: https://www.desertcart.uy/products/3811514-paraguard-250ml
store_origin: UY
region: Uruguay
---

# Safe for marine & freshwater 10% aldehyde blend Non-toxic parasite control ParaGuard 250ml

**Brand:** seachem
**Price:** $U1576
**Availability:** ✅ In Stock

## Summary

> 🛡️ Protect your aquatic ecosystem with science-backed, stress-free parasite defense!

## Quick Answers

- **What is this?** ParaGuard 250ml by seachem
- **How much does it cost?** $U1576 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/3811514-paraguard-250ml)

## 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

- • **Tank & Filter Friendly:** Safe for use directly in your main tank without harming fish or disrupting filtration systems.
- • **Formalin-Free & pH Stable:** A safer, non-toxic alternative that won’t alter your tank’s delicate pH balance or stress your fish.
- • **Dual Environment Versatility:** Perfectly formulated for both freshwater and marine aquariums—one solution for all your aquatic friends.
- • **Powerful Parasite Eradication:** Clinically proven 10% aldehyde formula wipes out ich, fungal, bacterial & viral threats fast.
- • **Prophylactic & Treatment Ready:** Ideal for quarantine, hospital tanks, or routine parasite prevention—keep your community tank thriving.

## Overview

Seachem ParaGuard is a 250ml aldehyde-based aquarium treatment designed to safely and effectively eliminate ectoparasites, fungal, bacterial, and viral infections in both freshwater and marine fish. Unlike traditional formalin treatments, it is non-toxic to fish and filter media, does not alter pH, and is suitable for use in main tanks and quarantine setups. Trusted by aquarists for over two decades, ParaGuard offers a powerful, safe, and versatile solution to maintain healthy, vibrant aquatic communities.

## 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).

Review: Happy Healthy Fish - Seachem ParaGuard is a fantastic product! I’ve been using it for my African cichlids, and it has worked wonders in keeping them healthy and free from parasites. It effectively eradicates ectoparasites, fungal, bacterial, and even viral issues without harming the fish or stressing them out. I appreciate that it’s a safer alternative to formalin while still being highly effective. Plus, it’s versatile and works well in both freshwater and marine setups. I’ve seen a noticeable improvement in my cichlids' health and behavior since using it. This is now a staple in my aquarium care routine. Highly recommended!
Review: If u suspect parasites in your aquarium, try Paraguard BEFORE strong medications - ParaGuard is an awesome aid for any fish enthusiast. I like how it can be used in the entire tank (no hospital/quarantine tanks), that it dissipates after a couple of days (requires daily additions until problems resolve), because it wont interfere with your filter media in canister or other filters, AND because it's not a strong antibiotic thatd potentially harm other fish that arent sick. SeaChems medications such as Kanaplex or Metroplex are very good medications to use AFTER 50% water changes higher temperature or Epsom Salts, or ParaGuard seem to not be as effective 1st few days. Can be added into food for easier absorption as well or in water column to reach gills. If fish seem very sick, then these medications are the ones to use in a hospital/quarantine tank if wanting to avoid treating entire tank. All of SeaChem products are legit (I wish they paid me lol) as I've used them for well over 10yrs. Started off with Prime, the ONLY water conditioner aquarisuts should honestly use, GarlicGuard food supplement is extremely effective and keeps fish immunity elevated throughout life, ParaGuard for the reasons mentioned above, etc. If I had 1 brand to use for my fish, u bet its SeaChem. The good customer service is also an added bonus :) Lastly folks, feed your fish SOAKED FISH FOOD in water or Garlic Guard (soften pellets, absolutely NO HARD FOOD!) along with some peas ONCE A WEEK to avoid any SWIMBLADDER ISSUES as this event is bad for a fish that cant orient itself. Pea fiber will flush out their bladders and preventing this EASILY PREVENTABLE illness. This along with weekly 50% water changes should prevent roughly 75% of potential problems. Other 25% remains in how many fish are stocked, if all fish are compatible, etc as there are many variable to consider in aquariums inclusive of water source... that's where my Prime comes in hehe :)

## 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 |
| Age Range Description | All Life Stages |
| Best Sellers Rank | #30,756 in Pet Supplies ( See Top 100 in Pet Supplies ) #285 in Aquarium Water Treatments |
| Brand Name | Seachem |
| Color | white |
| Country of Origin | United States |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,603) |
| Date First Available | October 2, 2001 |
| Date First Available  | October 2, 2001 |
| Directions | 1. Use 5 mL (1 capful) of ParaGuard for every 40 L (10 US gallons) in your main tank. For 1 hour dips, use 3 per 4 gallon) a separate container. 2. If fish are sensitive to medications, start with partial dose and build up the full over several days. 3. is gentle enough prophylactic quarantine tanks, which recommended 2 weeks. 4. Not reef aquaria. |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions LxWxH | 6.2 x 1.6 x 1.2 inches |
| Item Package Dimensions L x W x H | 6.57 x 1.81 x 1.73 inches |
| Item Weight | 8.5 Ounces |
| Item model number | 606 |
| Item model number  | 606 |
| Manufacturer | Seachem Laboratories, Inc. |
| Manufacturer  | Seachem Laboratories, Inc. |
| Material | cotton |
| Model Name | 606 |
| Number of Items | 1 |
| Product Dimensions  | 6.2 x 1.6 x 1.2 inches; 8.5 ounces |
| Size | One size |
| Specific Uses for Product | Behavior |
| Target Audience Keyword | fish |

## Product Details

- **Brand:** Seachem
- **Item Form:** Liquid
- **Item Weight:** 8.5 Ounces
- **Liquid Volume:** 250 Milliliters
- **Manufacturer:** Seachem Laboratories, Inc.

## Images

![ParaGuard 250ml - Image 1](https://m.media-amazon.com/images/I/51-bajdgvWL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Happy Healthy Fish
*by G***H on December 19, 2024*

Seachem ParaGuard is a fantastic product! I’ve been using it for my African cichlids, and it has worked wonders in keeping them healthy and free from parasites. It effectively eradicates ectoparasites, fungal, bacterial, and even viral issues without harming the fish or stressing them out. I appreciate that it’s a safer alternative to formalin while still being highly effective. Plus, it’s versatile and works well in both freshwater and marine setups. I’ve seen a noticeable improvement in my cichlids' health and behavior since using it. This is now a staple in my aquarium care routine. Highly recommended!

### ⭐⭐⭐⭐⭐ If u suspect parasites in your aquarium, try Paraguard BEFORE strong medications
*by A***N on October 20, 2018*

ParaGuard is an awesome aid for any fish enthusiast. I like how it can be used in the entire tank (no hospital/quarantine tanks), that it dissipates after a couple of days (requires daily additions until problems resolve), because it wont interfere with your filter media in canister or other filters, AND because it's not a strong antibiotic thatd potentially harm other fish that arent sick. SeaChems medications such as Kanaplex or Metroplex are very good medications to use AFTER 50% water changes higher temperature or Epsom Salts, or ParaGuard seem to not be as effective 1st few days. Can be added into food for easier absorption as well or in water column to reach gills. If fish seem very sick, then these medications are the ones to use in a hospital/quarantine tank if wanting to avoid treating entire tank. All of SeaChem products are legit (I wish they paid me lol) as I've used them for well over 10yrs. Started off with Prime, the ONLY water conditioner aquarisuts should honestly use, GarlicGuard food supplement is extremely effective and keeps fish immunity elevated throughout life, ParaGuard for the reasons mentioned above, etc. If I had 1 brand to use for my fish, u bet its SeaChem. The good customer service is also an added bonus :) Lastly folks, feed your fish SOAKED FISH FOOD in water or Garlic Guard (soften pellets, absolutely NO HARD FOOD!) along with some peas ONCE A WEEK to avoid any SWIMBLADDER ISSUES as this event is bad for a fish that cant orient itself. Pea fiber will flush out their bladders and preventing this EASILY PREVENTABLE illness. This along with weekly 50% water changes should prevent roughly 75% of potential problems. Other 25% remains in how many fish are stocked, if all fish are compatible, etc as there are many variable to consider in aquariums inclusive of water source... that's where my Prime comes in hehe :)

### ⭐⭐⭐⭐⭐ Great for ick and fin rot - but usually takes 3 days to work
*by R***R on October 6, 2012*

I get most of my fish through mail order. By the time they get to me they are often starting to show symptoms of any disease they've EVER been exposed to. This helps. I have successfully treated fish with ich, fin rot and body fungus. You do need to keep the treatments up, though - just putting in a dose for one day won't be enough. The directions are to use one capful for every 10 gallons daily. "Repeat as long as required as long as fish show no signs of stress." You can also use this as a preventative dip for new fish (which I highly, HIGHLY recommend) by putting half a capful per gallon of the dip. The good news is that not only do you not have to take the charcoal out of your filter and you do not have to worry about snails or shrimp, either. I did a heavy series of doses on one tank that had cherry shrimp in it, and not one died or even looked sick. If you keep fish, you really need to have medications on hand to treat them when something breaks out. Early treatment is key. I keep this and maracyn 2 on hand so I can nip diseases in the bud. Prazipro has a good reputation, too, but I have not tried that. Maybe there is a better broad spectrum treatment available than ParaGuard, but I have not found it yet. I would definitely like to hear people's feedback if they've found something that works better. By the way, this is what the bottle says: "ParaGuard is the only fish and filter safe aldehyde based (10% by weight) parasite control product available... contains no formaldehyde or methanol and will not alter pH... employs a blend of aldehydes, malachite green and fish protective polymers... effectively eradicates many ectoparasites (ich, etc) and external fungal/bacterial/viral lesions (eg, fin rot)."

## 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 Uruguay*
*Store origin: UY*
*Last updated: 2026-03-07*