---
product_id: 363813767
title: "TETRA CRYSTAL WATER 100ML"
brand: "tetra"
price: "€ 15.76"
currency: EUR
in_stock: true
reviews_count: 5
url: https://www.desertcart.ie/products/363813767-tetra-crystal-water-100ml
store_origin: IE
region: Ireland
---

# Safe for most freshwater fish Fast-acting clarity in 6-12 hrs Mineral-based particle binder TETRA CRYSTAL WATER 100ML

**Brand:** tetra
**Price:** € 15.76
**Availability:** ✅ In Stock

## Summary

> 💎 Transform your tank into a crystal-clear masterpiece!

## Quick Answers

- **What is this?** TETRA CRYSTAL WATER 100ML by tetra
- **How much does it cost?** € 15.76 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/363813767-tetra-crystal-water-100ml)

## Best For

- tetra enthusiasts

## Why This Product

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

## Key Features

- • **Trusted by Aquarists:** Highly recommended for achieving show-tank quality clarity—join the community of aquarium pros.
- • **Fish-Friendly Formula:** Gentle on most freshwater inhabitants, ensuring a safe and healthy aquatic environment.
- • **Mineral-Powered Purity:** Advanced mineral formula binds suspended particles for effortless filtration and pristine water.
- • **Crystal Clear in Half a Day:** See visible water clarity within 6-12 hours—no more waiting, just sparkling aquariums.
- • **Easy Dosage, Maximum Impact:** Simple 5ml per 10L dosing tailored for optimal results without guesswork.

## Overview

Tetra Crystal Water is a fast-acting, mineral-based treatment designed to clear cloudy freshwater aquariums safely and effectively within 6 to 12 hours. It binds tiny suspended particles into larger ones for easy filtration, is safe for most fish species, and is trusted by aquarists seeking showroom-quality water clarity.

## Description

Tetra Crystal Water clears cloudy water and suspended particles from the aquarium water fast, safely and reliably. Crystal Water contains selected minerals which remove cloudiness and haziness of all kinds. With its gentle mode of action, Crystal Water it is harmless for most aquarium inhabitants and quickly provides crystal clear water. The effectiveness of the product becomes visible by a white cloud, which is not dangerous and clears away after a few hours. The active ingredients in Tetra Crystal Water bind small particles in the water into larger ones that can then be filtered from the water by the aquarium filter. For an optimum effect the filter should be cleaned regularly. First effects are visible after 2 to 3 hours; the water is crystal clear within 6 to 12 hours. Tetra Crystal Water is suitable for all freshwater aquariums. Tetra Crystal Water Dosage Rates: Use 5ml per 10l of aquarium water or 2.5ml per 10l of aquarium water when KH value is ≤ 3° dH. Note: Do not use in tanks containing invertebrates such as snails, shrimps and other crustaceans.

Review: Highly recommended - This product does what it says on the tin and is amazing. My water was already clear (not cloudy at all) but there was small particles or simply not crystal clear to the highest limit, this product made it crystal clear (water clearness quality now up to the level of a show tank in an aquarium shop). Shrimp safe (at least it was in my tank): No note about its usage in shrimp tanks on the package. I have a mixed fish and shrimp tank (20 mixed red cherry and amano shrimps), had no issue with shrimps after I used the product so I can say t was shrimp safe in my experience. Leave 24 hours between this product and tap water safe (as stated on the package instructions). Highly recommend!
Review: Habitual - Lo uso habitualmente.

## Features

- For crystal clear aquarium water
- For all freshwater aquariums
- Safe for most aquarium inhabitants
- Fast acting formula: visible results within 6-12 hours
- Packaging May Vary

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 20 x 20 x 11 cm; 100 g |
| Item model number | T272 |
| Pet Life Stage | All Life Stages |
| Allergen Information | BPA-Free |
| Color | As per image |
| Quantity | 1 |
| Specific Uses | Active |
| batteries required | No |
| Batteries Included | No |
| Item Weight | 100 g |

## Product Details

- **Brand:** Tetra
- **Liquid volume:** 100 Milliliters
- **Item weight:** 0.1 Kilograms
- **Target species:** Shrimp
- **Allergen information:** BPA-Free

## Images

![TETRA CRYSTAL WATER 100ML - Image 1](https://m.media-amazon.com/images/I/71f2swTfz1L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Highly recommended
*by S***C on 9 December 2014*

This product does what it says on the tin and is amazing. My water was already clear (not cloudy at all) but there was small particles or simply not crystal clear to the highest limit, this product made it crystal clear (water clearness quality now up to the level of a show tank in an aquarium shop). Shrimp safe (at least it was in my tank): No note about its usage in shrimp tanks on the package. I have a mixed fish and shrimp tank (20 mixed red cherry and amano shrimps), had no issue with shrimps after I used the product so I can say t was shrimp safe in my experience. Leave 24 hours between this product and tap water safe (as stated on the package instructions). Highly recommend!

### ⭐⭐⭐⭐⭐ Habitual
*by B***. on 20 August 2025*

Lo uso habitualmente.

### ⭐⭐⭐ Good
*by M***B on 31 May 2021*

Good

## Frequently Bought Together

- Tetra CrystalWater, for Crystal Clear Water Fish Tank, 100 ml
- API pH DOWN Freshwater Aquarium Water pH Reducing Solution 118 ml Bottle

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-24*