Difficulty:Beginner Max Growth Size:6-10 cm Temperament: Peaceful schooling fish Water Temperature: 23-26 pH Level: 6.4-7.0 Diet: Omnivorous. Eats most aquarium foods, will also pick at green algaDanios are active fish, and will continually dart around the aquarium interacting with each other, searching for food, and swimming against any available flow of water. Because of this natural behaviour, the fish must be kept in groups comprising of at least six for the smaller species, and at least four or five for larger danios. Under ideal conditions, it is quite easy to encourage spawning behaviour in danios, in which the fish may chase and embrace each other, dropping eggs to the substrate. In a community tank, or a tank containing several fish, it is unlikely to ever see any young, since the eggs are normally eaten before they can hatch. To breed danios and raise a reasonable amount of young you will need to set up a specific spawning tank, and do a little research into the variety you are attempting to spawn.