I have some new ricordea that I purchased about two weeks ago and they have been doing good until the last couple days. One of them appeared to puke up his guts yesterday afternoon and is tiny and withered today and I notice that a second one is beginning to do this as well. Any ideas what is going on? All of my parameters are stable and right where they should be. If you need to know what they are, let me know and I will post them.