150 Pieces Bio Filter Balls for Pond Filter, Aquarium Filter, Organic Filter Balls, Organic Pond Balls, Black Cotton

Simple materials made from organic and safe marbles, you can use them with confidence
Simple organic balls: suitable for all fish tanks, swimming pools, aquariums and other aquarium balls
Fish tank balls suitable for household fish tanks, aquariums, etc
Share aquarium accessories with your friends and family, because it is convenient, aquarium accessory
Bio Filter - It is suitable for use in ponds, fish tanks, aquariums and more