PERFECT BREEDING GROUND FOR --- Bring home the perfect breeding ground for with this brown ceramic shelter. Once inside it, they remain undisturbed and relaxed which increases their breeding rate. SECURE HIDEOUT FOR --- The hollow space (0.6mm diameter each)serves as a secure hideout for and fish fry. The baby use these shelters for security while the adult use it for relaxation, privacy, and spawning. IMPROVE WATER QUALITY FOR PETS --- Three ceramic shelters by absorb all the harmful chemicals and toxins and prevent parasite growth, thereby improving the water quality. This, in turn, ensures that the and other aquatic pets get to live in cleaner water. AESTHETIC SURROUNDINGS FOR AQUARIUM --- Create an aesthetic surrounding right inside your home aquarium by keeping these ceramic logs inside. The brown color of the ceramic contrasts amazingly with the various hues of greens of the aquarium. ADD MOSS MAT ON LOGS TO MAKE THEM EVEN PRETTIER --- Stack them any way you want! Add a layer of moss mat on the logs to create a natural habitat. The moss mat also helps in keeping the shelter in place. You can wrap and decorate the ceramic shelter with aquarium plants and algae. colour:brown Material:Clay size:7.5 x 4.8cm Package Contents: 9 x Fish hidden cave Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.