No problem, glad its doing better for you, it could be just plain stressed out, or have some sort of infected tissue. The other polyps are okay? The borwn jelly could be a disease, or it could be the stressed animal loosing zoozanthelle (sp).
As far as the SG, lower SG can help fish with regard to parasites as some bugs cant take the hyposalinity but if you keep coral you must have a higher SG because it drastically effects them.
If you are worried about bringing parasites into the tank, quarantine new fishes and that becomes a non-problem.
An easy way to raise your SG is to use add saltwater as your topoff water, rather than fresh water.
BTW slow drip acclimation is always a good idea if you can do it that way-of course a hole in the bag can cramp that idea!
A cheap drip setup for future consideration: A container of some kind for tank water (I use a 2 qt pitcher); 3-4 ft of airline tubing, a screw type airline valve to control the drip rate, plastic clothes pins and if you want to be fancy get the airline kit that has the suction cup holders for sticking the airline tubing to your container.
Put the new coral/fish in its bag into a bucket, use the clothespins to pin the top of the bag up to the top of the bucket. Fill the container w/tank water, set it above the bucket with the new coral like on a table, run airline from it (use either the suction cups or clothespins to hold the airline in the container) to the bucket, put the valve on the end, make sure its open
and give a lil inhale to start the suction. That way you can drip it slowly, and if the bag overflows no harm done.
