= ( air EE id dee )
This family contains catfish from marine and freshwater
habitats. A few practice an unusual mode of reproduction
of mouthbrooding. Not popular catfishes for the home aquarium
as some grow too big and boisterous with a rather dull silver
colouration, but a few of the smaller varieties can be kept
with larger tankmates. Most will need salt added to their
water as they grow larger.