Seadisk

The seadisk replaced its ancestor, the ovasphere. It has become very wide and flat, so that it can absorb a maximum of light. Due to the disk-like shape it floats on the water. To get water, it filters the saltwater through the porous reddish parts of the hull, which filters the salt out of the water. The violet parts of the hull, where the most photosynthesizing cells are, are extremely leathery and elastic. Unlike its ancestor, it does not have a self-destructing life cycle. New seadisks bud directly under the reddish parts of the hull. When they are ready to be released, the reddish part bursts and releases the new seadisks. New seadisks are ball-shaped like their distant ancestors. In addition to that, the seadisk produces huge amounts of spores under the reddish parts of the hull. When they are ready to release, they'll simply be released through the pores.