Water-change tools · Intake prefilter sponge
Aquarium Co-Op Pre-Filter Sponge, Medium
Published fit chart covers multiple common HOB filters; measure the actual intake before selection.
Coarse intake sponge sized around a 0.5-in intake hole with stretch.
Consider: Intake fit is model-specific. Use the published compatibility chart and measure the intake; inspect foam condition instead of treating it as a guaranteed barrier for tiny animals.
US version. Check what’s in the box before you buy.
Specifications that affect fit
- Dimensions
- 3 × 2.5 × 2.5 in (L × W × H)
Before choosing this model
- Measure intake diameter.
- Check the exact fit chart rather than choosing by tank size.
Before you buy, see which tools make water changes easier.
Check it against your tank → Something not working? See the troubleshooting guide.
Build the complete pump, airline and sponge-filter system, including depth, outlet and valve checks.
Included items & upkeep
- pre-filter sponge
Plan for the routine work
- Remove inside a bag or pitcher to contain debris.
- Squeeze in removed aquarium water when used for biological filtration.
To budget for replacement media and supplies, use the first-year cost calculator. For how often and how to clean it, follow the maker’s manual.