why can't you tap fish tank?

it scares the fish
and it makes vibrations that
shake the take
and give them a fright
 
sound travels much faster in water than in air.. so when you tap it.. the whole entire tank is filled with sound! And they don't know the source! (maybe) But, i know this from scuba diving. Don't scare the poor fish with 5 second memory!!
 
Back
Top