Coolie Loach
The kuhli loach is an eel-shaped fish with slightly compressed sides,
four pairs of barbels around the mouth, and very small fins. The dorsal
fin starts behind the middle of the body, and the anal fin well behind
this. The eyes are covered with a transparent skin. The body has 10 to
15 dark brown to black vertical bars, and the gaps between them are
salmon pink to yellow with a light underside. When the fish is not
actively breeding, distinctions between males and females are not
readily apparent. However, close observation will reveal that males have
more a muscular upper/dorsal cross-section and their pectoral fins tend
to be larger, more paddle-shaped, and often have some pigment in them.
When breeding, the females often become monstrously fat and their
greenish ovaries can be seen through the skin before spawning. Spawning
is not easy, but when it occurs a few hundred greenish eggs are laid
among the roots of floating plants. Kuhli loaches reach maturity at 2 ¾ inches (7 cm) and have a maximum length of 4 inches (10 cm). This fish can live for 10+ years
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