Ps. elongatus is easily distinguished from other Mbuna species because of its more slender, and elongated body (hence the name). Ps. elongatus "Likoma Island" is one of the thirty-five or so Pseudotropheus elongatus variants. This adult male is rather domineering. This is probably more function of his larger adult size. Consequently, he hassles his tankmates with similar coloring: demasoni (who hold their own), saulosi, and another elongatus (medium-sized). He prevents the other elongatus from displaying her blue colors. When she was younger, he had her so stressed that her color was almost orange. Within 30-seconds of separating them, she had regained her full color.
Adults reach an impressive length of up to 6.5". Broods consist of 24-30 fry, who quickly take on the blue and black color (i.e., within 2 months usually). And like most mbuna, this species is primarily vegetrian; consequently, it should be fed foods high in spirulina and other vegetable matter. □