Just to provide an update for future readers:
After another couple of days it was obvious to me that my Bizzaro Cyphastrea was indeed infected as it continued to loose about 2-3 heads per day. This was much slower deterioration than the hammer experienced. So I went ahead and procured Cipro and treated using
this protocol as a guideline from
@AquaBiomics.
This is the exact treatment regiment that I used:
1. I had removed the Hammer completely from the QT and after an attempt at dipping with iodine and keeping away from the rest of the tank it was completely lost within hours.
2. I dipped the cyphastrea and the favia in iodine to clean them up and then treated them with a triple dose for 24 hours (cipro at .375mg/L) in a seperate 1 gallon hospital tank with aeration. After 24 hours I reintroduced them to the QT.
3. I treated the QT on a normal dose (cipro at .125mg/L) every 48 hours for a total of 3 doses.
Results after 2 weeks:
1. Favia appears to be in good shape with little to no further necrosis or appearance of jelly.
2. Cyphastrea lost about 2 dozen heads on top but now has stabilized and has not deteriorated any further. Hoping that the effected area will repair itself.
3. During the treatment a hermit crab and pom pom crab both molted - coincidence?
4. Within 24 hours of the start of treatment I lost my Emerald Crab. I noticed a day prior that he had developed a long whitish stringy mucous around his face and another area on his body and he was very sluggish. It appeared to be lighter than the brown jelly but appeared consistent with an infection to my untrained eye. So I'm not clear if 1) the brown jelly could infect an invert as well (I could find no reports of BJD on inverts) or 2) if this was an unrelated infection or 3) if the treatment itself killed him. Cause of death: inconclusive.
I also have now installed an 8 watt UV sterilizer on the QT running at a very aggressive low flow rate (high contact time) setting but still achieving high system turn over. More info
here. My approach is that this could help to buy time in the future if any problems arise during QT and that I would attempt to only medicate the affected coral in a separate hospital tank with cipro. The assumption being that UV will do nothing for the bacteria already in a given coral but that the likelihood of further transmission would be highly reduced (albeit probably not completely eliminated) with the presence of the aggressive UV sterilization. In this way I will not (hopefully) have to treat the entire QT upon any future occurrences.
Cyphastrea after 2 weeks: