A stunning fish in its own right, the Banggai Cardinalfish is also a dedicated parent. They hold their eggs inside their mouth during the incubation period. The eggs are protected from predators since they aren't even visible to the casual observer. The adult will abstain from feeding while incubating the eggs. Eventually, the eggs will hatch and tiny cardinalfish will swim out the adult's mouth.
Lembeh Strait, North Sulawesi, Indonesia