Blue star fish grows quickly and is easy to raise. Juveniles can grow to about 7-10 cm in the same year. During the estrus period, this fish chases and plays with each other in the water, and its spots are particularly beautiful, especially the male fish, whose body color is slightly darker than that of the female fish, which makes it even more beautiful. The water temperature for raising this fish should not be too low, and the light should not be too dark, otherwise it is prone to occur; various diseases, so the water temperature should preferably be above 23 ℃. Males are darker and beautiful in color, with a long and pointed back. The female is elegant in color, with a short and round background.

The requirements for dissolved oxygen of the blue star fish are the same as those of the cichlid and pearl fish The auxiliary respiratory organs with folded gills, located above the gill cavity, are composed of complex mucosa-like folds, which can live in water with less oxygen content, and can also float to the surface to swallow air when the water is deficient, so they are suitable for The lack of oxygen in the water will not worry you. Blue star fish like to live in natural waters that are not very flowing or completely still, and have no special requirements for water quality.