I've seen this quite a few times. Don't buy it.
A thread on treating "swim bladder disease" related to aros :http://www.arowanaclub.ca/forums/showthread.php?t=3300&highlight=swim+bladder
A thread on treating "swim bladder disease" related to aros :http://www.arowanaclub.ca/forums/showthread.php?t=3300&highlight=swim+bladder