I voted "HELL YES!" because he is VERY skittish...but that is to be expected with a Jardini.
I've tried a million combinations and nothing has worked 100%. I found that if I turn the room lights on first, leave them on for a few minutes and then turn my tank lights on he doesn't smash into everything like he used to.
If I cast a shadow on the tank (which is very easy when you're 6'3") forget it...all hell breaks loose and then everything else in the tank is flipping out because the Jar turns into a battering ram. I'm actually setting up a tank for just him because he's going to hurt himself or another tankmate if he keeps this up.