This multipurpose utilitarian aquarium ornament functions as shelter, security, privacy, entertainment and nursery for Pleco and Catfish. The pleco cave by Jor's composition, texture, and look make fish feel in their element. It also affords them a much-needed retreat from the stress and hardships of the aquarium while adding a touch of rustic beauty. If fish can withdraw to a hideaway whenever they want to, they tend to be better rested, better adjusted and much more likely to breed. That is why the Pleco Cave makes such an ideal underwater grotto. The slender, solitary opening and cloistered recess of this unique, hand-carved piece encourage breeding. At the same time, its enticing portal, gently textured surface and raw irregularities provide fish and other bottom feeders with a fun and stimulating environment as well as a protected place for egg-laying. Compact yet spacious, both fish and fish tank benefit from the Pleco Cave's ingenious structure. It occupies little of the precious space inside the tank while providing an astonishingly generous interior that can accommodate up to two or three fish at any one time. Enhance the lives of your fish and the aesthetics of your fishbowl with this stunning aquatic essential. Rinse the cave before placing it in the tank after boiling (optional) or soaking. A "post-boil soak" in freshwater is a recommended step. Although we obtain our products from established sources, the cave has traveled a long distance to make it to your aquarium. So in our opinion, the extra step is worthwhile. As this is a raw product, every item is unique in itself. Hence, it might come with Holes or there might not be any hole on the top.