Captive Care Notes: Pugnose Minnow (Opsopoeodus, Family Cyprinidae)
The Pugnose Minnow's (Opsopoeodus emiliae) preference for slow-moving water and it fascinating breeding behavior make it an ideal subject for aquarium study. Laboratory spawning was reported by Page and Johnston (1990) in 120 l (32 gal) and 80 l (21 gal) aquaria at temperatures between 20-26C (68-79F). The larger tank and two males and two females, the smaller tank one male and two females. To raise the eggs, remove the rock to a separate aquarium with aeration. Eggs hatch in 3-6 days and require rotifers, vinegar eels or microworms until they are big enough to take brine shrimp nauplii.