---
product_id: 83344820
title: "Siporax Pond, 25 mm, 50 Litre"
brand: "sera"
price: "€ 994.38"
currency: EUR
in_stock: true
reviews_count: 1
url: https://www.desertcart.sk/products/83344820-siporax-pond-25-mm-50-litre
store_origin: SK
region: Slovakia
---

# 25mm granule size for max surface area 1L treats up to 1000L pond water 34x bio breakdown power vs clay Siporax Pond, 25 mm, 50 Litre

**Brand:** sera
**Price:** € 994.38
**Availability:** ✅ In Stock

## Summary

> ⚡ Transform your pond’s ecosystem with next-level bio-filtration!

## Quick Answers

- **What is this?** Siporax Pond, 25 mm, 50 Litre by sera
- **How much does it cost?** € 994.38 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/83344820-siporax-pond-25-mm-50-litre)

## Best For

- sera enthusiasts

## Why This Product

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

## Key Features

- • **Optimized Granule Size:** 25 mm granules maximize surface area for superior bacterial colonization
- • **Massive Coverage Capacity:** Effectively treats up to 1000 liters of pond water per liter of Siporax
- • **Low Maintenance, High Impact:** Lightweight granules that deliver powerful filtration without the hassle
- • **Versatile for Fresh & Marine:** Perfectly engineered for both freshwater and marine pond ecosystems
- • **Revolutionary Bio-Filter Efficiency:** 1 liter equals the bio breakdown power of 34 liters of traditional clay media

## Overview

Sera Siporax Pond is a high-performance biological filter media featuring 25 mm granules that provide 34 times the breakdown power of traditional clay filters. One liter treats up to 1000 liters of fresh or marine pond water, ensuring crystal-clear, healthy aquatic environments with minimal maintenance.

## Description

Product Description          sera siporax pond is a fully biological filter material for almost all garden pond filters. sera siporax pond provides bacteria an extremely large amount of open-pored tunnel structures. This allows an ideal supply of the bacteria with nutrients and a smallest amount of fresh water. There are oxygen-poor conditions within the tunnels. This makes the bacteria crack nitrate to get enough oxygen. Consequently, they continuously break down nitrate, and the pond water remains low in nitrate. The surface of one liter of sera siporax Professional has almost as much biological breakdown power as 34 liters of clay filter material. Calculation formula for sera siporax pond: One single liter sera siporax pond is sufficient for purification of 1,000 liters pond water with 20 pond fish of 10 cm length each or a comparable stock (representing approx. 1.5 kg) of fish fed with up to 40 g high quality food per day] and release it from organic pollutions in long terms.             Directions          Calculate the appropriate dosage based on pond size and fish population, then add to pond water.             
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                     Box Contains          sera siporax pond 25 mm 50 l           See more

## Features

- for ponds, fresh and marine water
- surface of 1 liter has almost as much biological breakdown power as 34 l of clay filter material
- 1 l for up to 1000 l of pond water

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Pet Type | Fish |
| Product Dimensions | 30 x 40.01 x 57.99 cm; 10.98 kg |
| Item model number | 8480 |
| Item Form | Granules |
| Colour | White |
| Number of Items | 1 |
| Quantity | 1 |
| Batteries required | No |
| Batteries Included | No |
| Item Weight | 11 kg |

## Product Details

- **Brand:** sera
- **Liquid volume:** 1 Litres
- **Item weight:** 24.2 Pounds
- **Item form:** Granules
- **Target species:** Fish

## Images

![Siporax Pond, 25 mm, 50 Litre - Image 1](https://m.media-amazon.com/images/I/71PtlJyNE3L.jpg)

## Available Options

This product comes in different **Style Name** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ great product.
*by J***R on 8 September 2020*

great product and service.

## Frequently Bought Together

- sera Siporax Pond 24.2lb | High-Efficiency Biological Filter Medium | Nitrate Reduction & Optimal Bacteria Habitat | Easy Maintenance & Setup | Ideal for Garden Ponds
- Seachem Matrix, 4 L / 1 gal.
- Seachem Prime Fresh and Saltwater Conditioner - Chemical Remover and Detoxifier 100 ml

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**Shop now:** [https://www.desertcart.sk/products/83344820-siporax-pond-25-mm-50-litre](https://www.desertcart.sk/products/83344820-siporax-pond-25-mm-50-litre)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-14*