#wontswim

A couple days ago I noticed my betta acing really strange. He wouldn't swim unless you tapped the glass, hardly ate, & turned colors. I did an 100% water change & placed him in the water. He still didn't swim much but he changed back to his normal blue color. I didn't feed him for a day. Today...

I've had my betta fish Blu for a couple months. He's been pretty active. I rarely see him at the bottom of the tank. However yesterday I noticed that his face was turning from a navy blue (hence the name) to a gold color. I looked online & decided to clean out his tank. I cleaned it out & put...