I am thinking of adding a Fire Fish to my want to buy list. In my old 125g tank I had bought 3 of the regular Fire Fish, the ones with the orange tails, from the LFS and for about a month everything was fine, then one died and then about two months later, another died, the last one lived and was doing fine till the tank was broke down and he was given to a friend and is still going strong. I later read that the dominant fish will sometimes kill off the other ones in the tank and that may have been what happed to the two fish that died. The two fish that I am looking at for the new tank are the Purple Fire Fish or the Helfrich Fire Fish, will only have one species in the tank. Question one: Can I have more than one of these in the tank, I was thinking of having 2 of which ever species I get, or will the same thing happen to me again and one will kill off the other one? Question 2: My LFS store carries on a regular basics, the Purple Fire Fish, cost around $30 and its a nice looking fish. The Helfrich Fire Fish on the other hand, the LFS never carries and I have never seen one, except on You Tube. The price for the Helfrich is a lot more than the Purple, around $100 each plus shipping. What I want to know is if the Helfrich Fish that much better looking than the Purple that I should pay the $70 per fish more for it than the Purple, or just forget about it, buy the Purple and spend the extra money I would save and buy a nice Wrasse?