fish known to get out of tanks?

  • We are currently upgrading MFK. thanks! -neo
Arowana.while I was cleaning the tank my 14inch arowana jumped 4ft high and fell almost 8ft away from aquarium.aros are one the greatest jumper

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my 21 inch silver arowana gets spooked now and then and keeps hitting the cover.earlier she was fine but she had fallen sick with white spots and velvet and now that she has recovered she gets startled easily.can i help her to cool down by some method.please guide me.
 
The esox family...they had a meeting and made it a rule that any fish in the species has to go airborne out of the tank at least once. Pickerels especially because they are so damn jumpy.
 
my 21 inch silver arowana gets spooked now and then and keeps hitting the cover.earlier she was fine but she had fallen sick with white spots and velvet and now that she has recovered she gets startled easily.can i help her to cool down by some method.please guide me.

Dim the lights

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