Thank you for the reply. Now, here is another question. Is there any evidence that the parasites can be controlled or made non-malignant once they are present in a system. I bring in wild SPS and LPS frequently and follow a dipping protocol, plus quarantine in a 'dirty' holding system. Now, the dips I currently use (iodine and Revive) may not kill these protozoan so I could have unwittingly spread these parasites into the many client reef aquariums I manage. A little while ago I suffered a critically low iodine incident in my main system which resulted in the rapid near loss of a few colonies of LPS and SPS to an apparent brown jelly infection, followed by their stabilization and recovery once the iodine deficiency was corrected. I suffered another brown jelly event a couple months later that took out a large healthy purple and green lobo as well as a small tenuis colony in a matter of hours. Only change I had made prior to this was I put the ozone generator one a timer to cycle it on and off during the day and had changed one of the two 55W UVs on the system to run only at night. I have since reversed this change and there has been no further brown jelly presence observed in the past few weeks. Could I possibly have been suppressing the protozoa that are certainly in the system by running ozone 24/7 and 110W of UV at a flow rate of about 700gph in a 420gallon total volume system?
