Not trying to bash your fish, but something seems very off about that RTC. Is it some sort of hybrid? The eyes are on top of the head instead of on its side, they are also bulging out. Yes, breathing very hard. That tank looks to be a 55, if so need an upgrade soon, will help with stress. After my RTC passed 5" never provided hiding places, just kept lights low and plenty of room. Here's an old video of my RTC, check the eye placement. The indentation you are looking at allows the mouth to open a lot wider than you would think possible. Your's is more noticable because the dark color of your fish stops higher on the head.
[video=youtube;A7_LgZLytdc]http://www.youtube.com/watch?v=A7_LgZLytdc&context=C4edeb78ADvjVQa1PpcFM0c5gPDoecz6nzmDj4vwYt sfrfPdWMdVc=[/video]
[video=youtube;A7_LgZLytdc]http://www.youtube.com/watch?v=A7_LgZLytdc&context=C4edeb78ADvjVQa1PpcFM0c5gPDoecz6nzmDj4vwYt sfrfPdWMdVc=[/video]