I was just doing a simple water change. The Aro spazzed, tried to jump, knocked one end of the top completly into the tank, llid, tops, lights, still power to everything, rocks from the top of the tank, the biowheel cover, oh it was endless. So I unplugged everything from the wall, good, no Aro electrocution thank goodness, Now the tank was pitch dark which my Aro HATES, so for the next hour I had to put the entire thing back together. The Aro is swimming around feeling all cocky, quite proud of himself.....
He already bit me today, I was holding liver and he jumped out of the water and snagged it up to my second thumb and finger joint, scraping all the way down. Bloodthirsty Carnivore.
I'm sure you must have startled him some how doing your water change. I learned to do things slowly when working around the tank containing peacock bass. They freak out real easy too, so I do the same with the aro tank. Seems to help.
