He's my mom's betta and he's been living in a vase with some sort of plant for several months now but since last week or so,his color faded.He use to be a really bright sky blue.He use to be up along the plant's roots but now he's at the bottom,gasping for air and barely comes up to eat.I just changed his water earlier and took out the plant.Is there anything else to do?Please,don't complain about his living conditions.