Natural rocks create a particularly suggestive scenic effect inside the aquarium together with other natural decorative elements such as trunks and real plants. Amtra Gray Luohan is a limestone rock, suitable for use in the aquarium. It is advisable to use it in tanks with African cichlids or goldfish. Before using it, we recommend boiling it like other decorative elements. Amtra Gray Luohan each piece is unique, for this reason it can differ in color and shape compared to the image. The measurements and weight are indicative and being a natural product it may deviate by a few cm or gram, compared to the title of the advertisement. Natural Rock Calcarea Measure M Weight about 1 kg Size about 9 cm.