Danio margaritatus pools at one location is entirely fished off, it is unclear in how far the fish would be able to recolonize them. Conversely, if only part of a local subpopulation is removed, pools from which all celestial pearl danios have been removed likely will be recolonized with a healthy population again after one year or so. The dire warnings reported by Clarke, later in 2007 were found to be unfounded. The celestial pearl danio is prolific, spawning "almost every day", causing ponds that were thought to be empty to be fully restocked a few months later as fry hatched, grew,
Danio margaritatus with a markedly blunt snout, measuring just 2–2.5 cm standard length. The body is about three times as long as it is high. In general shape, it resembles "Danio erythromicron" more than any other known species. This species shows some sexual dimorphism: males have a bright-blue background color (dull blue-green in females), and their fins are more brightly colored. The tail end of their bodies (the caudal peduncle) is also higher than in females. The body is sprinkled with small, pearly dots. The back is bronzy green, and the belly in females is yellowish-white. The gill covers are transparent, letting