Aqua One Sponge 27S 2 Pack
Keep your aquarium filtration system running efficiently with the Aqua One Sponge 27S 2 Pack, a genuine replacement sponge set designed specifically for the Aqua One Maxi 103F Internal Filter. These black biological sponges trap debris and fish waste while providing ample surface area for beneficial bacteria to grow, helping break down harmful toxins and maintain a clean, healthy aquatic environment.
Easy to install and low-maintenance, the 27S sponges should be replaced every 8 weeks to ensure peak filtration performance and crystal-clear water for your aquarium inhabitants.
Key Features & Benefits
- Genuine Aqua One replacement sponge for Maxi 103F Internal Filters
- Biological sponge designed to support beneficial bacteria growth
- Traps fish waste and debris to improve water clarity
- Simple installation and low maintenance
- Recommended replacement every 8 weeks
| Feature | Detail |
|---|---|
| Product Type | Sponge Filter Media |
| Compatibility | Aqua One Maxi 103F Internal Filter |
| Quantity | 2 Pieces |
| Color | Black |
| Replacement Interval | Every 8 weeks |
FAQ
How often should I replace the Aqua One Sponge 27S?
The Aqua One Sponge 27S should be replaced every 8 weeks to maintain optimal filtration performance.
Is the Aqua One Sponge 27S compatible with other filter models?
No, the Aqua One Sponge 27S is specifically designed for the Aqua One Maxi 103F Internal Filter and is not compatible with other models.
Can I use the sponge in a freshwater or saltwater aquarium?
The Aqua One Sponge 27S is designed for freshwater aquariums and is not recommended for saltwater use.

Una Dickens –
I’ve used the Aqua One Sponge 27S for three months now and noticed a significant improvement in water clarity. The filter runs smoothly and the sponge holds up well without breaking down quickly. Easy to install and fits perfectly in my Maxi 103F filter. I plan to replace it in about 8 weeks as recommended.
Owen Wright –
The sponge works well for trapping waste and keeping the water clean. It’s a good fit for my aquarium setup. I didn’t notice any leaks or issues during installation. I’d recommend it to other freshwater aquarium owners.
Dorothy Welch –
After switching from the old sponge, my fish seem more active and the water is noticeably clearer. The sponge is durable and maintains its shape even after several weeks of use. It’s a reliable replacement for the Maxi 103F filter.