Lees Original Undergravel Filter, 20" Long x 10" Wide (10 Gallons) Screen Covers Highly effective on fleas

Highly effective on fleas

This wall with door can be placed anywhere you want

Triple-Safe Leash

Add a maximum of 10-20 crickets (depending on size)

Height = 1

Lees Original Undergravel Filter, 20" Long x 10" Wide (10 Gallons) Screen Covers Highly effective on fleasLees Undergravel Filter is the key to providing a strong biological filtration system. Undergravel filters utilize your tanks gravel substrate as a filtering surface area while providing oxygen to help aerate your aquarium water. Provides biological filtration and aeration to aquarium Includes airline diffusers, carbon cartridges, Discard A Stone and fish saver feature For use in fresh and saltwater aquariums Placed on the bottom surface of the