OHHHHHHHH YEAHHHHHHHHHHHH...... just got a handfull of colonies infected as well... I only had 1 colony infected but didn't pull it out to QT in time now, several other colonies got it tooo...
Furan2 is the best method of cure...
In a separate 5 gallon bucket (1 gallon of RO )( same pH and temp as your tank )
1-2 tablets of furan per couple of cups or something ( need to check on RC or Clubzoa for this )
dip them for 15-20 mins... turkey baste them too....
then once done... dip them in a separate bucket of RO to rinse them off the meds. then place them in a QT ( quarantine tank ) with decent light and good water flow...
repeat steps 3 times in the week... then let rest for another week, but if still continues repeat step again.
theres a better explanation of this in RC and even on clubzoa.
good luck. I've beat these bastards before and will do it again.