My new female went from a tanish body with teal fins when I picked her out to brownish purple the next day to a really dark purple black once introduced to the tank. I dont know about seasons but the do chance depending on mood, health and spawning.
I love the uniqueness and variety of each fish :)
Chester, Pixi, Pheobe and Kol, VT's
Archer and Ishka, CT's
Casper and Sapphire, Delta's
My prized Naran, orange HM