I bought a pair of beautiful black perc clowns. They had been in the lfs for about 3 weeks and I quarantined them in a tank at home for about 1.5-2 weeks. When I added them to my show tank they developed spots overnight. There were only a couple white dots that looked like ich spots. I immediately removed them, drip acclimated them back into my quarantine tank and overnight the spots were gone. Its been a week and the spots haven't returned. They are healthy looking, active and eating well. What were those spots? Is it normal? Can I add the fish to my show tank?