Volkmi 1pcs PP Aquarium Fish Tank Bottom Filter Grid Isolation Plate Black 30X30CM

--Multifunctional isolation board, free combination, random splicing, can meet the needs of most fish tanks

--The backing plate used for DIY bottom filtration is beneficial to water circulation and can also isolate the fish in the aquarium

--Suitable for fresh water and sea water, and will not affect water quality.

--Food-grade plastic material, environmentally friendly, no side effects.

--Size: 30*30*0.7CM inner size is 1*1cm, 30*15*0.7CM inner size is 1*1cm.