Gar & Arow's - Strange behavior

this is often considered dominance behavior by the gars, and is definitely just a form of social interaction with other fishes. gars tend to do this with each other quite often, and it's interesting to see hierarchies form among tankmates.

it should be noted, however, that a jardini and gar are not a good combo, and as soon as the jardini get some size on him (if the gar doesn't try to eat him first), it will start being quite aggressive towards most tankmates (this combo often ends up with the gar relegated to the bottom of the tank...pretty much at all times, day/night).--
--solomon

My gar does the same thing when ever i introduce a new fish in the tank...

not to mention the jar might just decide that it wants to be the only living thing left in HIS aquarium..

yea.
be ready.
ive seen my gar doing this to my other fish before he went into the pond.
especially does it to my tilapia.
but my tilapia always turns around and pushes him.