Siamese Fighting Fish are probably best
known for their aggressive tendancies. You can never have more
than 1 male in the same aquarium as they will certainly fight
to the death. Even if there are no immediate threats to the
fish, they will still require a place to hide in their aquarium.
If there are no other fish around the Siamese Fighting Fish
will even attack its own reflection in the aquarium glass. In
the wild these fish feed on mosquitos and other small insects
and generally inhabit warm, slow moving water.