My LFS just got in some purple fishfish in and im thinking about getting one. I've been wanting one for so LONG! I currently have a 24gal nano cube. My aquarium has one percula clown in it and 10lbs live rock with various other inverts. I've had the tank running for about a month and a half...without any problems. Now, im wondering if the purple fishfish would but a good addition into the reef tank? How hardy are they? The fish are selling for around 35 dollars, is that worth it?