Balmera are a species of space-living creatures so colossal in size they are often mistaken for planets. They are actually ancient, petrified animals whose bodies naturally create a variety of crystals useful as power sources. They are revered by not only their symbiotic inhabitants, the Balmerans, but by many other species; ancient Alteans considered them sacred beings to be respected and repaid with in energy in return for the gift of a crystal.
As Coran states, the Balmera are gigantic living beings, literally planets in their composition. They naturally produce crystals that the Alteans used to power their ships and the like, but in order to remove the crystals, a member of Altean high society had to perform a ritual in order to atone for the cost for the Balmera. In such a way, balance was preserved.
The Balmera are home to Balmerans, a group of humanoid - reptilian hybrids that can communicate with the Balmera. The way they do this is by producing vibrations that the Balmera is able to carry throughout its body to the other Balmerans.
The Galra Empire mined numerous Balmerans across the universe for their crystals, which would allow them to produce quintessence. However, they do not perform the ritual that the Alteans did, meaning that the Balmera was severely injured every time a crystal was removed.
- “It’s not a planet. Balmera are ancient animals. Petrified, but still alive. Their bodies naturally create the crystals that help power many Altean ships. I often accompanied my grandfather to visit these majestic creatures when he was building the Castle of Lions.” – Coran (S01.E04.Fall of the Castle of Lions)