tank restocking

[Nihoa]

we treated the tank with a reef safe med we bought from j&l ~> aqua munster protomarin reef safe treatment. whether or not it worked i cant really say. we lost 4 fish while dosing with the med. the hogfish didnt show any visible signs of ick or brooklynella but he was rubbing on the live rock very frequently. the watchman defin had ick spots and by the end of the reef treatment and to date the hog has stopped rock rubbing and we havent seen anything on the watchman. i dont know if this means they fought it off or if the reef med worked.

i agree there is a possibility the ick is still in the tank. after quite a bit of reading i get the impression that ick is in a lot of tanks at low levels and becomes a problem when the tank is stressed? i made the mistake of adding a lot of fish at once and i think i was asking for trouble. if i restock more slowly with less shock to the system can i control the ick?

it is a reef tank.