Double Head Aquarium Sponge Filter with Bio Media Box for Shrimp Breeding Tanks Rearview Mirrors it's bigger than most straw

it's bigger than most straw holders and provides plenty of storage space

【Vibrant Colors】The butterfly crystal sun catcher makes it reflect the light better

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each capable of making 33 ice spheres at once

Usage: Gel removal

Double Head Aquarium Sponge Filter with Bio Media Box for Shrimp Breeding Tanks Rearview Mirrors it's bigger than most strawKeep your aquarium water clean and stable with this double head sponge filter with bio media, specially designed for shrimp tanks, breeding setups, and small to medium sized aquariums. The filter uses an air driven system to draw water through high density environmental sponge, providing both mechanical and biological filtration. The built in media containers can hold various bio media like ceramic rings or quartz balls, enhancing beneficial bacteria