interesting im thinking of purchasing a pacman from mike real soon here and i have a 10 gal tank im planning on keeping him in. Should i go get a smaller tank untill he gets a little bigger or will he do just fine in the 10 gal? i have another tank that i put my firebellies in while cleaning their setup. its 12" long 6 1/2" wide and 12" tall would that work until he gets a little bigger?