Newly hatched, flame striders are incredibly small and transparent, making them difficult to see, but they grow rapidly and within a few days they have turned black. It's at this point that tiny veins of fire start to appear on their small bodies. Even at such a young age, a hatchling fire strider can control its power fully, so there is no need to worry of an accidental fire.
The color of a flame strider is an indication of its heat. Red flame striders must be handled with special gloves, while blue is cool to the touch. Green flame striders however, can become hot enough to melt metal. Like most of their kind found around the keep, these animals are only popular with a handful of magis, as most find them creepy, and some flee from the room at the sight of them. Flame striders can be incredibly useful in potion making, though; by setting a red flame spider on the side of a caldron, it can bring the contents inside to a boil much faster than a normal fire. Likewise, if you sat a blue flame strider on the side, it will cool a potion down. Many magis who have the striders as companions will even use them as a way to keep themselves cool, or warm, outside.
Sprite art: Jrap17 | Description: Jrap17