It Measures 18'' X 4.5'', And Is Easily Bent To Your Will. Josh's Frogs Pond Wall Substrate Stop Acts As A Dam, Holding Substrate Back And Allowing Water From The False Bottom Layer Of Your Terrarium To Freely Flow Through It. Many Plants Will Also Root Directly Into Josh's Frogs Pond Wall Substrate Stop!

Josh's Frogs Pond Wall Substrate Stop Is Nontoxic, 100% Animal Safe, And Textured, Allowing Any Animals That Enter The Water Feature An Easy Climb Back Out. To Use, Place Josh's Frogs Pond Wall Substrate Stop In The Enclosure. The Foam May Need To Be Cut For A Snug Fit - Scissors Or A Razor Blade Work Great!

Place The False Bottom And Substrate In The Tank, Ensuring That Any Substrate Does Not Come Under Josh's Frogs Pond Wall Substrate Stop Into The Water Feature. In Large Water Features, Gravel, Rocks, Or Wood May Be Needed To Hold Josh's Frogs Pond Wall Substrate Stop In Place.