Water went cool aid green and was very hard to see the fish in. So I did a few 25% water changes kept the light off and nothing still green. Then I decided well I'll do a 50% water change still no results so like a idiot I do a 75% water change a week later. Well the water is clear and the fish is now floating around the tank tail down gulping. Moral of the story don't change that much water on a fish that can not handle environment changes. Will see how this ends and I hope it's not me tossing the arowanna in my Chana micro tank.