Minnimae is a broad term covering small nano-organisms that vary in shape, size, color, and the like. Most of them inhabit anything alive, and feed on whatever energy they leave behind. Some are harmful, some are helpful, but all of them are invisible to the naked eye.
The Minnimae order consists of heavily diversified organisms that occupy many major niches in the nano-organism environment.
The ancestors of all modern Minnimae, the Priminae are the remnants of the ancestors, and specialize in nothing. They inhabit organisms and feed off latent magical energies in the organisms. They possess none of the unique traits of later evolutions, and are mostly harmless.
These specialized Minnimae use magical energies in ways most organisms don't. Using the magical energies of the host, they make passive spells to protect them against various attacks, or help their host even. They channel the latent magical energies of the host for their own purposes, and in some specialized species, become a mini-Well.
These Magacane Minnimae use their magical abilities as a predatory tool, hunting other Minnimae in the host. They also detriment from the hosts health by massive amounts, and make the user weak and hard to use magic. An example is the Ranaminnimae, which channels energies from the host causing heat, which kills nearby Minnimae, but also causes fevers in the host.
These Magacane Minnimae channel magical energy from outside the host, and cause special effects in the host, like heightened magical ability, and increased strength. Some species can cause miniature space-time distortions, and this can have detrimental effects on the user, but this is rare. An example of this sub-order is the Seheminnimae, which causes accelerated healing and in some cases regeneration in the host.
The Minnimae in this order do not depend on magical energies, but do sap from the user's health in some cases. They are in some cases detrimental to the host, but in many ways can be used for positive purposes. A major species of this order is the Aculii, which helps the immune system fight viruses and thus makes the user almost invincible to disease.