2 sizes available 

Den now has 2 X 12mm holes with twin plugs.

White casing, with red light filter included, easily removed and replaced, depending on your lighting requirements.

Large holds 3 x  20mm standard test tubes included with kit.

Medium holds 3 x 16mm standard test tubes included in kit.

both feature an outworld entrance should a larger foraging are be needed.

both feature an inspection veiwing hole to check hydration levels in the tubes.

Lift up clear cover for maintenance and feeding.