Black Neon Tetras come from the Paraguay Basin in Brazil. Their natural habitat spans several hundred kilometers. The fish can be found in small tributaries, floodplains, and rivers flowing through dense forests. The specimens you see in the fish trade are largely captive-bred. Black Neon Tetras readily spawn in captivity, creating a healthy market for aquarists looking for a high-contrast fish for their tank. The average Black Neon Tetra lifespan can reach up to 5 years in captivity. Their lifespan basically mimics regular Neons. That said, there are no guarantees. While this species is known for its hardiness, failure to…