· ---This hideaway stone is a good cave for fishes, shrimps to breed, play and rest. Betta, shrimp, guppy, snail...will love it.· ---Be suitable for small fishes, easy to clean, good for nitrifying bacteria reproduction which can help to improve water.· ---Ceramic material with granite pattern, safe and non-toxic for fishes. No Fading, No smell.· ---No sharp or rough edges, no worry on scraping fins.· ---A cute decorative piece, get it to create a natural and living environment for your fish tank. It is also a good gift for Christmas, birthday, new year, for your families, kids, friends colleague, etc.