Phytodiamond

The phytodiamond split off from the gateway shrub. It started out as a mutation that did not root itself into the ground. However, the mutation was given the advantage of collecting microplankton from the water. After many generations, the floating crystal developed a hollow chamber within for flotation, much like a bony fish's gas bladder. Evolution of a floating lifestyle was possible, because there were no herbivores. The phytodiamond retains some of the poison from its ancestral forms, but it has weakened because there were no herbivores.