PERFECT BREEDING GROUND FOR SHRIMPS --- Bring home the perfect breeding ground for shrimps with this brown ceramic shelter. Once inside it, they remain undisturbed and relaxed which increases their breeding rate. SECURE HIDEOUT FOR SHRIMPS --- The hollow space (0.6mm diameter each)serves as a secure hideout for shrimps and fish fry. The baby shrimps use these shelters for security while the adult shrimps 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 shrimps 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: 15 x Fish hidden cave