I'm not sure if my paroon shark is stressed out or if its normal, but my paroon shark tends to zip back and forth in the tank. info please.
More than 10 years
Is this your fish?
If so your tank is not near big enough and they prefer live food. From the reading I've been doing they get 100inches long and need a 900 gallon tank. So it probably is stressed out. My advice would be to take it back to the store where you bought it.