I HAVE A 300G TANK WITH ONE MOTORO STINGRAY IN IT WAS WONDERING IF MY PEACOCK BASS (6-11" 3 OF THEM) WOULD BOTHER THE STINGRAY. tHE STINGRAY IS ABOUT 9 INCHES IN DIAMETER. I DONT WANT TO PUT THEM TOGETHER AND THEN WAKE UP TO A DEAD STINGRAY. THANKS FOR THE HELP.