DescriptionDo you want a kind of professionalfish tank flatworm catcher ? Do you want to keep yourfish tank or aquarium out of flatworm ? This can be your best choice. Really practical and useful, justput it into the fish tank and buried part of it into the fish tank bottom .Features-Color:As Shown -Material:Glass - Size: 2.30X2.30X11.30cm/0.90X0.90X4.44in-Made of high grade and safe material, it is easy to clean and it will not pollute the water.-Easy and safe to use, and this planaria catcher is reusable and will not hurt the fish in the tank.-Catchflatwormand will be safe for fish and plants. Used to catch theflatwormwhich may influence the fish tank.-Adopt naturally catching method, prevent hurting fish or water grass by usingflatwormremoval agent.-This flatworm trap is transparent and clear, which complements the fish tank. easy to install and use.