theres a book called freshwater fishes of new zealand that not to bad
it put out by reed
also have inangas around 10 cm if u after any pm be if u like to kown more
I have about 40 cold water tanks runing at the mo
in them i have
goldfish
leopard fish
white cloud mountin minnows
peppered corydoras
whitebait
cockabullys
shimps
Axolotls lots of them