My powder blue gourami has been acting strange the past couple days now. He is sitting on a powerhead and is coming up for air every once in awhile. His breathing is laybored. I’ve done a waterchange and the parameters are fine. I took him out and put him in a 1 gallon tank to look at him. When I hold him on the surface he blows bubble out of his mouth. When I’m not holding him he’ll sink to the bottom and sit there. Sometimes sideways. Not sure what is going on. He’s been in the tank for a long time now.