i know that there has to be a reason for the instant change in his attitude. the pleco i have that is over a foot is becoming really hungry all of a sudden. i took the un unnecessary filtration off the tank to see if this will help, but he keeps swimming around trying to eat anything that stays still long enough even my cats have to fight him off there back. i have been throwing in some algae wafers a few times a day to just keep him happy because i really dont want him to strip any of my fish nor do i want to rehome the pleco. any help is great.