---
product_id: 47963385
title: "Evolution Aqua Pure Aquarium - for a Crystal Clear Healthy Aquarium (50 balls)"
brand: "evolution aqua"
price: "190 Lei"
currency: RON
in_stock: true
reviews_count: 13
category: "Evolution Aqua"
url: https://www.desertcart.ro/products/47963385-evolution-aqua-pure-aquarium-for-a-crystal-clear-healthy-aquarium
store_origin: RO
region: Romania
---

# Lasts 4 months per tub Beneficial bacteria boost Natural enzymatic waste breakdown Evolution Aqua Pure Aquarium - for a Crystal Clear Healthy Aquarium (50 balls)

**Brand:** evolution aqua
**Price:** 190 Lei
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your aquarium game—crystal clear water, zero hassle!

## Quick Answers

- **What is this?** Evolution Aqua Pure Aquarium - for a Crystal Clear Healthy Aquarium (50 balls) by evolution aqua
- **How much does it cost?** 190 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/47963385-evolution-aqua-pure-aquarium-for-a-crystal-clear-healthy-aquarium)

## Best For

- evolution aqua enthusiasts

## Why This Product

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

## Key Features

- • **Bio-Boosted Filtration:** Enhances biological filters for healthier, fresher tanks
- • **Award-Winning UK Quality:** Twice Practical Fishkeeping’s Product of the Year for proven performance
- • **Safe for All Aquatic Life:** Chemical-free, activates only when needed—perfect for fish, shrimp & snails
- • **Effortless Crystal Clarity:** Just 1-2 balls per 25L weekly for visibly cleaner water
- • **Low-Maintenance Aquascaping:** Reduces sludge buildup, cutting down tank cleaning time

## Overview

Evolution Aqua Pure Aquarium balls harness natural bacteria and enzymes to rapidly break down organic waste, maintaining crystal clear, toxin-free water. Designed for weekly use, each tub lasts up to four months in a 60L tank, reducing filter and gravel maintenance while promoting a healthy aquatic environment. Safe for all fish and aquatic species, this award-winning UK-made product supports biological filtration and keeps your aquarium thriving with minimal effort.

## Description

Product Description Pure Aquarium is best used once a week and a single tub will typically last four months when used in a 60 litre aquarium. Both Pure Aquarium and Pure Pond are best used with filters and can help to establish new biological filters. Directions 1. Add 1 to 2 Pure Aquarium balls per 25 litres of water once a week to maintain a clean and healthy aquarium. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Box Contains PURE AQUARIUM See more

Review: Clean, easy, and low-fuss—solid bio balls for tank clarity, filter health, and fish comfort. - These balls are geared toward keeping tanks crystal clear—each one packed with beneficial bacteria that break down waste and boost biological filtration. Ideal for tropical or coldwater setups, whether you’re running sponge filters, external units, or internal boxes. Just drop them in—no measuring, no mess. Works well in tanks that get cloudy or need a boost after water changes. Fish stay calm, water clears up fast, and filters run smoother. Great for van setups, pet stash, or home aquariums where you want low-maintenance clarity. No smell, no residue, and safe for shrimp and snails too. Best used weekly or after filter clean-outs—keeps bacteria levels topped up without overdoing it. 👍 Pros ✅ Easy to use—just drop in ✅ Clears water fast—visible results ✅ Boosts filter health—supports bacteria ✅ Safe for all species—fish, shrimp, snails ✅ 50-pack—lasts months with regular use 👎 Cons ❌ Not a chemical—takes time to work ❌ No resealable pouch—store in tub ❌ Won’t fix poor filtration—needs working setup
Review: ⭐️⭐️⭐️⭐️⭐️ Keeps My Aquarium Crystal Clear! - These Evolution Aqua Pure balls are fantastic — they’ve made a huge difference in keeping my tank water clear, clean, and healthy. Within a few days, I noticed less waste buildup and a big improvement in water clarity. They’re super easy to use — just pop them into the filter or directly into the tank, and they do the work for you. Safe for fish and plants, and no mess at all. The 2-pack is great value and lasts a long time. Highly recommend for anyone who wants a cleaner, healthier aquarium with minimal effort! 🐠💧

## Features

- Use biocides safely. Always read the label and product information before use.
- NATURAL, CHEMICAL FREE SOLUTION FOR A CRYSTAL CLEAR, HEALTHY AQUARIUM – Pure Aquarium contains beneficial bacteria and natural enzymes that rapidly break down organic waste leaving your aquarium clean and fish healthy.
- REDUCES FILTER AND TANK MAINTENANCE – By naturally removing excess fish waste, fish food and toxins, Pure Aquarium helps your water stay fresher for longer, meaning fewer tank maintenance sessions and happier, less stressed fish.
- CONTINUOUS GRAVEL CLEANING AND WATER FILTERING ACTION – Simply adding 1 to 2 Pure Aquarium balls per 25 litres of water once a week, Pure Aquarium reduces sludge and organic build up on gravel ensuring that your fish can thrive in a safe, healthy and crystal clear environment.
- SAFE FOR ALL FISH AND TANKS – Pure Aquarium’s all natural ingredients only activate when needed and are safe to use in new or established aquariums.
- AWARD WINNING PRODUCT, MANUFACTURED IN THE UK – Twice awarded product of the year by Practical Fishkeeping.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B007ISJGGQ |
| Allergen Information | Allergen-Free |
| Batteries Included | No |
| Batteries required | No |
| Best Sellers Rank | 901 in Pet Supplies ( See Top 100 in Pet Supplies ) 2 in Aquarium Cleaning Products |
| Colour | Aqua Pure |
| Customer Reviews | 4.4 4.4 out of 5 stars (8,167) |
| Date First Available | 9 Mar. 2012 |
| EU Energy Efficiency Label | B |
| Item Form | Balls |
| Item Weight | 130 g |
| Item model number | 21900 |
| Number of Items | 1 |
| Pet Life Stage | All Life Stages |
| Pet Type | Fish and Aquatic |
| Product Dimensions | 10 x 10 x 6.5 cm; 130 g |
| Quantity | 1 |
| Specific Uses | Active |

## Product Details

- **Brand:** Evolution Aqua
- **Item form:** Balls
- **Item weight:** 0.13 Kilograms
- **Liquid volume:** 1 Millilitres
- **Manufacturer:** Evolution Aqua

## Images

![Evolution Aqua Pure Aquarium - for a Crystal Clear Healthy Aquarium (50 balls) - Image 1](https://m.media-amazon.com/images/I/71moVz5ReKL.jpg)

## Questions & Answers

**Q: It says these are for tropical aquarium, will they work in coldwater aquaria also?**
A: Have been using the white ones for my 25 litre coldwater tank for nine months. I put a couple in a mug etc, pierce them a bit and top up with water, stirring briskly. Add to water set aside for a part change and add when ready. Makes water a bit cloudy initially but after an hour or two comes beautifully clear. Of course I've only got two residents, a larger tank with more at home would need more. Very pleased with them, have been complimented on clarity of tank. Smith and Jones love 'em!

**Q: I have a 46 litre tank how many balls would you recommend that I use?**
A: I have two tanks, a half moon and the normal oblong tank. I know what it says but I have found that when I set up my tanks I put in two balls, now I put in 1 every other week. My tank water is always clean and I don't put things in when it's not needed. Good luck!

**Q: Can this be used in a turtle tank?**
A: It's best to use these balls in a filter in case fish, turtles try to eat them.  As they clean water it would not be harmful to turtles but if there is no filter in their tank best not to use.

**Q: Do these balls dissolve in the water and if so how long does it take ?**
A: Yes they dissolve in the water, they dissolve rapidly, you’re supposed to put them in the filter but I have been dropping them straight into my aquarium with no adverse effects ! Great product !

## Customer Reviews

### ⭐⭐⭐⭐⭐ Clean, easy, and low-fuss—solid bio balls for tank clarity, filter health, and fish comfort.
*by G***E on 20 September 2025*

These balls are geared toward keeping tanks crystal clear—each one packed with beneficial bacteria that break down waste and boost biological filtration. Ideal for tropical or coldwater setups, whether you’re running sponge filters, external units, or internal boxes. Just drop them in—no measuring, no mess. Works well in tanks that get cloudy or need a boost after water changes. Fish stay calm, water clears up fast, and filters run smoother. Great for van setups, pet stash, or home aquariums where you want low-maintenance clarity. No smell, no residue, and safe for shrimp and snails too. Best used weekly or after filter clean-outs—keeps bacteria levels topped up without overdoing it. 👍 Pros ✅ Easy to use—just drop in ✅ Clears water fast—visible results ✅ Boosts filter health—supports bacteria ✅ Safe for all species—fish, shrimp, snails ✅ 50-pack—lasts months with regular use 👎 Cons ❌ Not a chemical—takes time to work ❌ No resealable pouch—store in tub ❌ Won’t fix poor filtration—needs working setup

### ⭐⭐⭐⭐⭐ ⭐️⭐️⭐️⭐️⭐️ Keeps My Aquarium Crystal Clear!
*by W***T on 9 October 2025*

These Evolution Aqua Pure balls are fantastic — they’ve made a huge difference in keeping my tank water clear, clean, and healthy. Within a few days, I noticed less waste buildup and a big improvement in water clarity. They’re super easy to use — just pop them into the filter or directly into the tank, and they do the work for you. Safe for fish and plants, and no mess at all. The 2-pack is great value and lasts a long time. Highly recommend for anyone who wants a cleaner, healthier aquarium with minimal effort! 🐠💧

### ⭐⭐⭐⭐ Certainly keeps the water clearer and increases time between cleans
*by T***E on 23 January 2024*

I was a bit sceptical given the mixed reviews but they do work in a small 65ltr aquarium with 6 minows and a large shrimp with attitude. I was having to do a 50% water change, clean the glass and filter and vacuum the gravel about once a week before trying these - you do have to put them into the filter not lose as it suggests but the water is much clearer and doesn’t smell so much and reduced how much I have to change the water (50%) to about every 2-3 weeks so well worth it - I use about 5 balls in a PF2 under the sponges and they last about 7-10 days - will buy again

## Frequently Bought Together

- Evolution Aqua PURE Aquarium Freshwater Bacteria Bio-Balls - 250 ML
- API MELAFIX Freshwater Fish Bacterial Infection Remedy 16-Ounce Bottle
- Seachem Prime Fresh and Saltwater Conditioner - Chemical Remover and Detoxifier 100 ml

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-24*