The Koi betta is also referred to as the Marble betta and is essentially a coloration morph on the acquainted and universally well-liked betta splendens. You can find just so a variety of tropical fish species that we'd like a means to split them up into diverse aquarium fish classes. https://aquariumaccessorie.blogspot.com/2023/10/what-are-pros-cons-of-keeping-discus.html