"Scientific" name – Scientific is within " " because we also have included some unclassified L-number species.

"Other" scientific names – For some genera scientists have different opinions of what taxonomically is "correct", and both genus names are also used in the trade. It is not up to us to decide what is "correct" or not and therefore we mention both.

Trade names – for some species there exist trade names, if this is the case we also mention these.

= Indicates the approx. average maximum size in centimetres (1 cm = 0.39 inch) of this fish in the nature.

= The minimum aquarium length in centimetres (1 cm = 0.39 inch) that this species needs to exhibit its natural behaviour.

- Difficulty: On a scale from 1-5 where 1 indicates a very hardy fish and 5 an extremely difficult fish that is more or less impossible to keep in the aquarium.

= The appropriate temperature range for the species.

= The appropriate pH range for the species.

The symbol means that this species needs strong current water in the tank. The symbol means that current water isn´t necessary.

= Herbivore (green food like algae and plants), = Omnivore (not a specialized eater), = Carnivore (animal source like molluscs, insect larvae, shrimps), = Wood eater (eat pieces of wood).

= This symbol means that the species needs a piece of wood in the tank.