ATI Replacement Sponge Mini
The ATI Replacement Sponge Mini is designed to replace the sponge in the mini hydro-sponge filter and the #1 pre-filter. It provides effective filtration for aquariums while maintaining a compact size suitable for small tanks.
Product Features
- Compatible with mini hydro-sponge filter and #1 pre-filter
- Designed for efficient biological and mechanical filtration
- Easy to install and replace
- Highly absorbent material for effective water filtration
Specifications
| Item | Details |
|---|---|
| Product Type | Replacement Sponge |
| Compatible Filters | Mini Hydro-Sponge Filter, #1 Pre-Filter |
| Material | High-absorbency sponge |
| Size | Standard fit for mini filter models |
FAQ
Is this sponge compatible with all mini hydro-sponge filters?
This sponge is specifically designed for compatibility with the mini hydro-sponge filter and the #1 pre-filter. Please ensure your model matches the specifications listed.
How often should I replace the sponge?
The replacement frequency depends on tank conditions and usage. Generally, replace every 4 to 6 weeks for optimal performance.
Can this sponge be used in saltwater tanks?
Please contact customer service for saltwater compatibility details.

Rebecca Paterson –
The sponge fits perfectly in my mini filter. It maintains water clarity and helps keep the tank clean without clogging. Easy to remove and replace. Works well with my small community tank.
Felicity Bower –
Fits the #1 pre-filter exactly. The filtration is noticeable after a week. Slight shrinkage after first use, but it’s not a major issue. Good value for the price.
Sophie Mills –
Installed it in my 10-gallon tank and noticed better water flow and less debris. The sponge stays intact even after several weeks of use. No leaks or issues reported.