Now then, as stated I'm a newbie. I've got two flying foxes in my tank and just five minutes ago I put my hand in to 'fish' out some debris at the bottom of the tank. Turns out none of my fish were particularly happy about this, my Bala sharks went mental and now my two foxes have muted their colours. Is this normal fir them when they've had a fright? Also I guess I should use a net and not be poking around with my hand?