Hi, I made a thread not so long ago about my smallest of the 3 pearl gourami staying behind the filter and I tought everything came back to normal later that day. Actually it got worse, she's staying at the right cornor of the tank almost all day long and today I don't think she even ate so I hope tomorrow she will. The other pearl gouramis are 2x or 3x bigger than her so she gets pushed a little bit. What should I do?