General
Solar Koi are incredibly energetic during the day. Young magi will sometimes race their water creatures to see who is the fastest, and when the noon sun is highest, no other water creature, magical or not, can beat a solar koi in pure speed. They can swim the length of the stream as fast as a blink. They are nimble and lithe, their thinner bodies letting them fit through tiny underwater cracks in the stone of the Keep as they seek out algae to eat. Solar koi are common, as their speed makes them difficult for predators to catch and even when young they can outswim any predator - at least during the day. At night, they hide out of sight, waiting for the sun to return their power.
Egg
This egg shimmers in the sun's light
Hatchling
This small koi hatchling is hard to spot in the water. When it isn't moving it's translucent, and when it does it looks like the sun's rays reflecting off the waves. These koi aren't very active during the night, opting to stay near the bottom of their watery home, but when the sun comes out they dart and jump as best they can to enjoy its warmth.
Adult
Solar koi love leaping from the shining, warm shallow waters of the pond to enjoy the sun in spring and summer. With their speed as they rocket from the bottom of a pond or stream, they can achieve incredible height on a jump, the sun shining off their shimmering scales. Solar koi will often leap from the water when their magi gets near, showing off their talent and perhaps inviting their magi into the water. If a magi swims with their solar koi, they will be able to swim incredibly fast, covering leagues and leagues in minutes that would take a boat or canoe hours. Of course, one will have to return before the sun sets, because the koi will lose its power without the sun's rays.
Notes
Obtained from: Koi Pond
Breeding: Yes
Renaming cost: 200 gold
Release date: April 11th 2019
Element: Neutral 
Breeds with the following:
Solar Koi + Solar Koi = Solar Koi (Very easy)
Successfully breeding Solar Koi during the night will result in a Lunar Koi instead of a Solar Koi.
Sprite rotates based on time of day.
Sprite art: Jrap17 | Description: Raneth