---
product_id: 87216453
title: "Bio-Max, 500 g"
brand: "fluval"
price: "€ 53.00"
currency: EUR
in_stock: true
url: https://www.desertcart.ie/products/87216453-bio-max-500-g
store_origin: IE
region: Ireland
---

# No impact on water chemistry Superior biological filtration Replenish only 50% at a time Bio-Max, 500 g

**Brand:** fluval
**Price:** € 53.00
**Availability:** ✅ In Stock

## Summary

> 🦠 Elevate your aquarium’s ecosystem with Fluval Bio-Max — where science meets crystal-clear water!

## Quick Answers

- **What is this?** Bio-Max, 500 g by fluval
- **How much does it cost?** € 53.00 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/87216453-bio-max-500-g)

## Best For

- fluval enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Efficient:** 500g pellet form fits seamlessly into your filter, maximizing surface area for bacteria growth.
- • **Trusted Brand Quality:** From Rolf C. Hagen, a leader in aquatic care, ensuring reliability and performance.
- • **Smart Seeding Strategy:** Replace only half at a time to maintain a thriving bacterial colony and avoid filtration downtime.
- • **Water Chemistry Friendly:** Keeps your aquarium’s delicate balance intact—no unwanted shifts in pH or hardness.
- • **Next-Level Filtration Power:** Harnesses advanced bio-media to supercharge your aquarium’s natural filtration system.

## Overview

Fluval Bio-Max is a 500g pellet-based biological filtration media designed to enhance aquarium water quality by promoting beneficial bacterial growth. It supports superior filtration without altering water chemistry and recommends partial media replacement to maintain optimal seeding. Manufactured by Rolf C. Hagen, it fits standard canister filters and ensures a healthy, balanced aquatic environment.

## Description

The FX UVC In-Line Clarifier quickly and easily connects to all canister filters to eliminate suspended algae for a clear and clear aquarium. With unique CCFL technology, the FX UVC bulb runs cooler to last up to 2X longer than traditional lamps. It attacks green and cloudy water by applying powerful, DNA-destroying light emissions at a precise 253 nanometer wavelength. This natural process is chemical-free and will not affect beneficial, surface-dwelling bacterial colonies that are already established. Say goodbye to cloudy and green water forever Compatibility FX2/FX4/FX6 Canister Filter and 107/207/307/407 Canister Filter

## Features

- Provides superior bilogical filtration
- Replenish only half at one time to allow proper seeding
- Will not affect water characteristics

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Fluval |
| Liquid Volume | 500 Millilitres |
| Item Weight | 0.57 Kilograms |
| Item Form | Pellets |
| Manufacturer | Rolf C. Hagen (USA) Corp., Rolf C. Hagen (USA) Corp. |
| UPC | 015561114561 |
| Global Trade Identification Number | 00015561114561 |
| Manufacturer | Rolf C. Hagen (USA) Corp. |
| Item model number | A1456 |
| Product Dimensions | 11.43 x 11.43 x 6.6 cm; 570 g |
| ASIN | B000HHSG5M |

## Product Details

- **Brand:** Fluval
- **Liquid Volume:** 500 Millilitres
- **Item Weight:** 0.57 Kilograms
- **Item Form:** Pellets
- **Manufacturer:** Rolf C. Hagen (USA) Corp., Rolf C. Hagen (USA) Corp.

## Images

![Bio-Max, 500 g - Image 1](https://m.media-amazon.com/images/I/81KPDYoIQ4L.jpg)

## Questions & Answers

**Q: How often should these be changed?  I have two Fluval filters, 105, 305 on a 40 gallon breeder tank (used for a turtle and guppies only).**
A: Unless it completely breaks down and crumbles, never. Do not wash in the sink or with tap water as it will kill the bacteria which is the entire point of these. If clogged with physical detritus just shake them loosely in aquarium water in your aquarium safe bucket you use for water changes or cleaning and reuse. They only say to replace so they can make $$$.

**Q: Out of one box which is about 18 ounces, how many gallons of water would this be good for? Simply because I have a 55gal aqaurium**
A: Biological media doesn't go by gallons, I understand it seems like it should, but if your tank is cycled or in the process of cycling this just makes a safe place for that bacteria to live,  you'd be fine with one box due to the super high surface area of these rings, but you can always add more if you have space for them, your tank being fully cycled is what really matters.

**Q: How good is the Surface Area for these? More rough=more SA.**
A: They have worked well for my aquarium - still in use - they have a textured surface to hold - I like the product

**Q: Would this filter media work if I put it in a mesh pouch and hang it in the tank? I have a light source so not sure if this would make algae grow**
A: Yes but not as efficiently. Bacteria can easily colonize these rings in a filter because so much waste passes through them. When you just hang it in the tank its like adding extra gravel which the bacteria also colonize but to a lesser degree.

## Frequently Bought Together

- Fluval BioMax Biological Material Remover, 500 g - Biological Filter Media for Aquariums
- Fluval Carbon Filter Media for Aquariums, Premium Bituminous Carbon Inserts, 100-gram Nylon Bags, 3 Count (Pack of 1), A1440
- Fluval Zeo-Carb, Chemical Filter Media for Freshwater Aquariums, 150-gram Nylon Bags, A1490 , White, All Breed Sizes, pack of 1 (3 count)

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-22*