nano reefer
Active Member
Well... lets see. Ill start off with all the info you need to know before i tell you the problem. Tank has been set up for a year or so. A 55 reef with 250watt MH and 2 96watt PC's. Nitrates <10, Phosphates <.1, Magnesium 1450, Calcium 350, Alkalinity 8.5. All corals (even my other zoos) are doing great, multiplying and growing like crazy! The problem i have is that on my 250 polyp orange zoos rock, in the middle there is a spot appearing that is rock. The zoos that were there are gone! I would say about 10 zoos are missing. Could there be some kind of disease or something? I thought it may have been some zoo eating nudibranch but i have not seen one and have not had a problem with nudibranch in the past. Like i said, my other 3 zoo rocks are doing fine. Any ideas???
