I would probably feed he/she a little more that that and vary its diet a bit. Right now I have 3 anemone shrimps 2 cleaner shrimps and 2 bloodred shrimps in a 20 gal. There is a little competition in my tank and if you feed them regularly, competition should not be a problem. The size of your tank is more of a factor than most shrimps ability to cope with one another. There are some warnings about the
pistol shrimp as it is likely to kill other shrimp. I have never seen this but have heard a few stories about it. I do have experience with the aggressive coral baded shrimp and this particular shrimp gets along horribly with other shrimp as well as fish.