Lilia wrote: << What are these tiny white pin-heads on the whole body of the fish? >> Probably Ick, use Ick-guard or the equivalent. Might be velvet. I've heard it can sometimes imitate the appearance of ick. There are a number of treatments available at your LFS. You might treat for both simultaneously, but I would try the ick thing first, unless the spots increase in size. Then it is velvet for sure.