Collecting jewelry! That is the intent of this series of projects dedicated to the starfish. Fascinating beings of many shapes, all of which, however, share radial symmetry and the presence of arms/tips (from 5 to 50!) or whatever we want to call them.

They are mainly active at night and crawl along the bottom, useful scavengers we can call them. They have the special characteristic of being able to regenerate body parts, this makes them particularly interesting in my eyes
DEEPSEE​

Starfish (a common name for this class of exclusively marine animals) live in virtually all the world’s seas, all types of seafloor, and up to a record depth of 6,000 meters!

It is a very special animal, due to the fact that it can regenerate parts of its body that have been lost, and especially very useful for managing the balance of the seabed (preventing some species from spreading too far by overpowering others).

• Another feature, if we want to be a tad extreme, is that in many cases reproduction is asexual, that is, it occurs by splitting the specimen into two parts, in each case regenerating the missing part and creating a new specimen. 

Since they are not animals that can swim fast and thus escape at the whiff of a diver, I would say they are ideal photographic subjects.

Moreover, they are found well and poorly on all types of bottom and at all depths.

The problems associated with photographing these subjects are purely technical, that is, in the aprioristic choice of the type of shots to take and the type of lighting to use. Since they are not large in size, they are therefore more like macro/super-macro or most ambient macro subjects.

Personally, I have photographed starfish somewhat in all diving modes. If the intention is to make super-macros however, I suggest using equipment that allows you to breathe underwater at your leisure.