Their size is 12cm +/- 1cm (size of one single longest side)
Shells in size M consist of several chambers / holes.
Perfect natural decoration for your aquarium. Shell is a remain of living organisms found in the seas and oceans. It is not only a great addition to any aquarium but it also stabilizes the pH in the biotopes of Tanganyika and Malawi. Perfect for building a rock cave, which can be anamazing looking fish hideout.
100% NATURAL. Every owner of underwater pets knows that decorations and aquarium substrates not only look nice, but also affect the environment of our fish. That is why it should be ensured that most of them are natural.
The pictures show examples of using the stones in aquarium arrangement.