- Aquarium pre-filter sponge for small fish and shrimp provides a first line of protection for pumps and helps keep debris out of the system - Includes small fish/shrimp intake covers with anti-suction features and an anti-suction water hose plus anti-shrimp mesh filter to prevent injury and clogging - Cotton wool pore media supports nitrification by offering surfaces for beneficial bacteria, aiding biological filtration - Thorough filtration helps reduce dirt deposits in water lines, promoting clearer water and easier maintenance - Suitable for small tanks and nano setups; complements standard pump intakes in fry, nano, and shrimp aquariums - Use scenarios: 1) Nano tanks with small fish or dwarf shrimp to protect intakes and reduce turbulence 2) Fry or breeding tanks where fry safety at the filter inlet is a priority 3) Shrimp-inhabited planted tanks to curb debris buildup in tubing and sustain stable water quality