so as i thought my xenias are now not opening and seem to have shrunk. my ph, salinity, and para. are perfect. temp goes from 78 to 81 when lights are off and on. There is no slim or anything unusual coming opff of them. i am running purigen, seael, and denitrate so i am not to concerned with it poluting my water. I am doing a 2 gallon change today and will test the water before i do it. the main question is i was told to leave them alone and when/if the melt to almost nothing they will regrow and since they were in my water the new growth will be tolarent to my water by the 2nd or 3rd generation. is that true?