Introduction
Copella arnoldi, known as the splash tetra or spraying characin is an old favourite that is notable both for its beauty and remarkable breeding behaviour. This species is the only one known to lay their eggs above the water surface. In the wild, overhanging leaves are used whilst in aquaria a suitable alternative will be the tank sides or cover. It was described as Copeina arnoldi by Charles Tate Regan in 1912.
UK Aquarist 