Fig. 286. Polycentrus schomburgki (Life size) 

 Although this interesting fish has been bred rather freely at times, it has so far 

 remained in the select class and is only occasionally obtainable. Prefers live diet, 

 but will eat the patent food, "Kennel Rations." Breeding habits, page 243 (No. 19). 



Fig. 287. Scatophagus argus (Aquarium size) 



In a lithe fish with long fins we expect speed, and in a "dumpy" specimen with 

 short fins we look for slowness of movement. It oftens works out in reverse. Our 

 present subject is a case in point. This odd-looking species is very active and quick of 

 movement, especially in aggressively chasing those of its own kind. 



The brilliant black or greenish dots are variable as to number, the background 

 being a pale, metallic green. In others the dots are replaced by vertical or oblique 

 bars of a brownish color. These are believed to be males. Little is known of their 

 breeding habits. They are really marine fishes and not much can be expected of breeding 

 them in the aquarium. They are not often obtainable, and are considered to be among 

 the "first families" in the tropical aquarium. 



Although they can live in fresh water, best results are had by keeping them in 

 about one part of sea water and three parts fresh. As water evaporates, add only fresh. 



280 



