These sponge pads can be used in hob filters, internal filter or other DIY projects for small aquariums to keep the water clean and healthy.

Provide both mechanical and bio filtration and extend the lifespan of your other primary filter media

Made of sponge, soft and can be reused after rinse

Size of each piece: 2.375x2.125x1.14 inches (L x W x H)

Includes: 150 pcs sponge pads