Foild

The foild have split from their ancestors, the king foi, by figuring out a way to avoid predators; however, since both species feed on microscopic organisms, this new species has not put its ancestor to extinction, as there are enough small prey items to go around - plus the new species has gained an extra food source, putting less strain on its ancestor.

Still a free-swimming species, they now will spend most of their time swimming around the local reefballs that forest the area, and naturally will attempt to avoid heading out into the more open areas of the coast. They also have kept their purple coloring, although it has altered ever so slightly to almost match the spheres of the reefballs more exactly. These two alterations have aided them in now hiding from their predators as best that they can, through the use of camouflage.

Their eyesight has improved to better see a foe, and when a predator such as the beach shrotter or the  crawling snark approach, they will swim as quickly as they are able up against the reefballs that they inhabit, and once they find an opening, they will curl over themselves, rolling their body into a ball, and press themselves hard into the nook they have located. They will be held in place by the spheres of the reefballs, and will keep their eyes facing outwards to keep a look out for their predators. Once here they will pull in their undulating fins to more accurately resemble their mimicked items. Once it has passed, they can safely uncurl and swim away again, although they will typically wait for upwards of 30 seconds before reemerging.

They still feed mostly on microorganisms who get trapped to their underside, they will also work to dissolve spots off of the reefballs to supplement their diet; this also allows them to always have nooks around the reefballs that they can hide into. They occasionally run into problems with the reefball gilltails, who sometimes mistake them for actual reefballs while they are hiding, causing them to get injured and sometimes even killed; either by the gilltail itself or by the creature who was initially hunting it.