I have read in the diagnostics section where people talk about fish flashing...well the only thing I can deduct it being is a "Fishies Gone Wild" or a "Fishy Gras" kinda thing...and i hope thats not it.

But seriously, what is flashing? where a fish will swim really realy fast back and forth alot of times in the tank? flipping over?
It would be nice for a post here explaining this, for me and others that arent up to expert lingo yet. hahaha
thanks,
SpooN