Weird thing coming out of discus nose

[sphed]

Hello

I am having problems with my adult blue turq. I have a 55 Gallon tank with a total or three discus, 4 cory cats and 11 Lemon Tetras. The tank has been running for a 1 1/2 years and I have had my discus for about a year. Tank is 0 nitrates, ammonia 0, 50% water changes every 3 days and 84 temp .

I recently moved into a new apartment. A couple days after moving in I realized there was a small blob hanging out of one of my discus nostrils. It almost looks like a booger if fish do have boogers. It also looks like popeye but its on his nostril instead of the eye. I also used carbon to clean up the cloudy water after stirring up the substrate from moving. The discus is eating fine but hides in the corner behind driftwood all day. I did a water change and started dosing with Prazi Pro. I also have Metro+.

Anyone know what this could be?

[pcsb23]

Not sure what it can be, unliely that prazi will fix it though. I would have done a salt dip to see if it cleared "stuff" out. Plenty of good water and observe, see what happens. Expect they'l be stressed from the move.

[sphed]

here is a pic of the discus. You can see the blob coming out of his nose. The bubble grows big and then bursts. Ive been keeping the water exceptionally clean and still no progress. Should I try manually removing it with tweezers?

http://img87.imageshack.us/img87/7033/img2220ac8.jpg (http://imageshack.us)