---
product_id: 59955620
title: "Middle"
brand: "aquaneat"
price: "€ 17.54"
currency: EUR
in_stock: true
reviews_count: 9
category: "Aquaneat"
url: https://www.desertcart.at/products/59955620-middle
store_origin: AT
region: Austria
---

# Quarter-cylinder shape boosts surface area Microbubble air infusion for max oxygen Soft sponge traps debris, safe for tiny fish Middle

**Brand:** aquaneat
**Price:** € 17.54
**Availability:** ✅ In Stock

## Summary

> 🧜‍♂️ Elevate your nano tank game with AQUANEAT’s whisper-quiet, oxygen-rich corner filter!

## Quick Answers

- **What is this?** Middle by aquaneat
- **How much does it cost?** € 17.54 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/59955620-middle)

## Best For

- aquaneat enthusiasts

## Why This Product

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

## Key Features

- • **Discreet Corner Fit:** Compact corner shape blends seamlessly into your tank’s ecosystem without disrupting aesthetics.
- • **Fish-Safe Gentle Flow:** Soft sponge and minimal current ensure delicate shrimp and nano fish stay safe and stress-free.
- • **Effortless Maintenance:** Quick rinse & squeeze cleaning keeps your filter performing at peak with zero hassle.
- • **Oxygen Boosting Microbubbles:** Built-in air infusion chamber releases fine bubbles, elevating oxygen levels for thriving aquatic life.
- • **Maximized Filtration Efficiency:** Innovative quarter-cylinder design expands bio & mechanical filtration surface for crystal-clear water.

## Overview

The AQUANEAT Aquarium Bio Corner Sponge Filter is expertly engineered for tanks up to 15 gallons, featuring a unique quarter-cylinder shape that maximizes filtration surface area and oxygen exchange. Its soft sponge material provides safe, gentle filtration ideal for breeding shrimp and small fish species, while the built-in air infusion chamber produces fine bubbles to boost oxygen solubility. Easy to install and maintain, this filter discreetly fits into tank corners, ensuring a pristine aquatic environment with minimal current and hassle-free cleaning.

## Description

desertcart.com : AQUANEAT Aquarium Bio Corner Sponge Filter, for Breeding Shrimp Nano Fish Tank, up to 15Gal : Pet Supplies

Review: Works great. - Works good, I have one in each side of my 15g planted shrimp aquarium. Water is clear shrimp look happy. It has it's own built in diffuser not air stone. Doesn't cause a bunch small or large bubbles making micro water droplets sprinkle out. Causing those little spots in top like others do when they kind of make that misty zone. Easy rinse amd squish to clean. Plug the hose on top good to go easy. Use a valve to control air output.
Review: Good Filter for a 5.5 Gallon Tank - The small size (up to 10 gallons) is perfect for a 5.5 gallon betta tank. It's quite small so it doesn't take up too much room. It'd be easy to hide in a planted tank or with some driftwood. The base is heavy and it stays at the bottom after the sponge fills with water. I paired it with the Nicrew Air Pump and it's working great.

## Features

- New design: quarter-cylinder shape increases the surface area to get a better water and oxygen exchange rate. It also make the filter easy to hide in the corner of a tank
- Sponge filter provide both mechanical and bio filtration, also, the air infusion chamber produces minute bubbles which increase the oxygen solubility
- Safe for fish: soft sponge material, traps floating debris and won't suck up your fish, excellent for small size fish like betta, dwarf cichlid, guppy, killifish etc., or for hatcheries, maternity tanks, and fry tanks, as the filter produces minimal current and has almost no way to suck the fish through the filter
- Easy to set up & clean: simply install an airline into the unit and turn on the air pump, simply rinse and squeeze sponge in tank water
- Recommend tank size: up to 15 gallon; Dimension: 2.25"Lx2.25"Wx6.25"H

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B078X74T9M |
| ASIN  | B078X74T9M |
| Best Sellers Rank | #15,657 in Pet Supplies ( See Top 100 in Pet Supplies ) #141 in Aquarium Filter Accessories |
| Brand Name | AQUANEAT |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,093) |
| Date First Available | January 9, 2018 |
| Date First Available  | January 9, 2018 |
| Is Discontinued By Manufacturer  | No |
| Item Package Dimensions L x W x H | 4.33 x 2.44 x 2.44 inches |
| Item Weight | 6.1 ounces |
| Item model number | SF-A229 |
| Item model number  | SF-A229 |
| Manufacturer | AQUANEAT |
| Manufacturer  | AQUANEAT |
| Package Dimensions  | 4.33 x 2.44 x 2.44 inches; 6.07 ounces |
| Size | Middle up to 15Gal |
| Target Audience Keyword | fish |

## Images

![Middle - Image 1](https://m.media-amazon.com/images/I/612nVJ5lccL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great.
*by C***E on March 10, 2026*

Works good, I have one in each side of my 15g planted shrimp aquarium. Water is clear shrimp look happy. It has it's own built in diffuser not air stone. Doesn't cause a bunch small or large bubbles making micro water droplets sprinkle out. Causing those little spots in top like others do when they kind of make that misty zone. Easy rinse amd squish to clean. Plug the hose on top good to go easy. Use a valve to control air output.

### ⭐⭐⭐⭐⭐ Good Filter for a 5.5 Gallon Tank
*by H***H on November 16, 2025*

The small size (up to 10 gallons) is perfect for a 5.5 gallon betta tank. It's quite small so it doesn't take up too much room. It'd be easy to hide in a planted tank or with some driftwood. The base is heavy and it stays at the bottom after the sponge fills with water. I paired it with the Nicrew Air Pump and it's working great.

### ⭐⭐⭐⭐⭐ Good shrimp tank filter
*by A***N on January 12, 2026*

Works well with the micro hygger air pump. It’s doing a great job keeping a 5.6 gal tank clear and clean.

## Frequently Bought Together

- AQUANEAT Aquarium Bio Corner Sponge Filter, for Breeding Shrimp Nano Fish Tank, up to 15Gal
- Uniclife Aquarium Air Pump Dual Outlet Fish Tank Aerator with Accessories for 5-200 Gallon Tank
- AQUANEAT Aquarium Tubing 25 Feet Clear, Airline Tubing, Standard 3/16” Air Hose for Fish Tank Air Pump,Hydroponics,Pond

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**Shop now:** [https://www.desertcart.at/products/59955620-middle](https://www.desertcart.at/products/59955620-middle)

---

*Product available on Desertcart Austria*
*Store origin: AT*
*Last updated: 2026-04-27*