Exo Terra Repti-Clear F150 Internal Terrarium Filter Replacement Foam Block - 2 Pack

Exo Terra Repti Foam Filter Block (FX-200) – A foam filter block for the Exo Terra Turtle Filter FX-200 that provides mechanical and biological filtration. It’s custom-cut to fit the filter chamber, preventing water bypass and ensuring all water passes through. The porous foam traps debris and waste particles, while also housing beneficial bacteria that break down ammonia and nitrites, keeping the aquatic habitat clean and healthy. Regular rinsing and occasional replacement of the foam block will maintain the filter’s efficiency and water quality for aquatic turtles and amphibians.