tigers are great, just becareful if you buy a pistol that you arent completly sure what exact species it is, i bought a sweet looking orange, blue, and red one. latter finding out that it kills anything it cant get ahold of, it ate 4 1/2 legs off a serpent star that had eight inch long legs, ( dont worry still alive, that was two mnths ago and they are all growing back) blue watchman, six line wrasse, wheelers shrimp goby, two conchs, and who knows what else. he now resides in 1 gallon tank by himselve because he doesnt want to get along.