A good and effective way to remove the planaria in the fish tank without chemicals or medication.
* The dimensions is 32mm, height 30mm, 8 holes.
* Make sure the holes are at the bottom for trapping purposes.
Hole Diameter: Approx. 0.3cm / 0.12inch
Bottom Diameter: Approx. 3.1cm / 1.2inch
Length: Approx. 3cm / 1.18inch