it's kind of hard to tell from the pictures, but it has some of the same markings as a blue acara or green terror. Does it have colored edges on it's dorsal and/or tail fin? Can you get a more close up picture of it?
It looks African to me. Possibly some kind of Haplochromis. Need better pics to be sure. Personally I have never heard of a Blue Terror, just greens and reds.