Mr Aqua Pre-Filter Sponge Small (4 Pack)

The coarse pre-filter sponge can be used to prevent juvenile shrimps and young fish to be sucked into the filter

The sponge can absorb pollutants and cultivate large amounts of nitro bacteria to decompose poisonous elements to help stabilizing the water quality

• Suitable for 10mm Hose, but can also be stretched a little for large pipes up to 12mm
• Rinse and reuse
• Can be used in most filter types. For example canister filters, over the top filters and hang on filters

Size: 4.5cm long x 3.2cm diameter with a 10mm diameter hole down the middle - both end are open.