So I got a skunk cleaner shrimp about 2 weeks ago... since he's molted twice! The molts have been pretty much back to back. Should I be concerned at all? He's grown tremendously in these molts, he's now at least a half size bigger than when I got him. I want to be happy about it, that the tank must be doing well if he's growing so much but I don't want him to over do it! How often do these guys typically molt?