Heh... cichlids. Cichlids and Gouramis are one of the most wonky fish ever. -.-; "semi aggressive" and "non aggressive" versions usually end up aggressive. Though, if the tank is big enough they should be fine. I am looking after three darn cichlids. One is a big boy, mean as can be. One is a pink fella, wimpy as can be. The third is a small grey, who is half way between mean and nice. The owner had them in a 38 TALL and they got sick, after being so mean and jumpy. Currently they are in my 30 gallon (I want it back ;( ) because I feel they needed the longer space.
And they are getting better (columnaris....), pinky has to be medicated some more directly with malachite green... But it has not spread! The tank size may have dropped, but the space they gained back was better.
Awesome thing about cichlids: I learned they rarely leave 10-12 inches above gravel/bottom. Long tanks, are AWESOME. Not sure if you can find one in your area, as they can sometimes be hard to find. But you know what? They are worth hunting for.
Also tons of decor!! Soft, decor. They like to tear stuff up (sigh...) and they also tend to ram into things
The bigger the space, the better they behave ;p
But it is a good thing you see his behavior. Because it is better than him hiding all the time!!!