so in my 38 gal growout tank, i have a Labeotropheus fuelleborni who is about 4.5" and is just now starting to do his little "shocked" shake, and chasing all my other fish around. my other fish consist of a blood parrot, female kenyii, sulfur head peacock, venustus, c. moorii, and a jewel cichlid. he is even size with the venustus and the blood parrot is about an inch larger. could it be that he is looking to mate and/or is just being a territorial jerk? i don't think that any of the particular specie i have are close enough to breed, but i was just wondering what someone else thought. thanks.