Featuring a suction cup backed hollows with 0.1mm 3D printed accuracy, the light weight structure offering regulable placement in tanks and simulates natural rock textures for stimulation Crafted with porous, plastomer component, this aquariums decorative cave provide safe shrimp protecting and multiple exploration holes for bettas fishes while maintaining water integrity Functions as both decorative centerpieces and functional shelter in freshwaters aquariums, paludariums, or tanks up to 8cm depth, enabling natural swimming / hide behaviors Ideal for aquarists keep bettas fishes, dwarf shrimp, requiring stress freely and owners prioritizing biodegradation aquariums accessories The bettas cave ' s hide feeding grooves retains sinking pellets safely while its smooth, crevices freely surfaces prevents injury