ok this is getting crazy these white silverish dots on my tri colour sharks keep reoccuring, not on any of the other fish i have, only these two... theres only like 5 marks on them... tiny ones like grains of salt. ive treated the tank with aquarium salt and increased the temperature to 80 degree, the salt bath has been going on for a week, theyre totally fine though, swimming around normally and eating just fine no scratching on the gravel or tons of granite pieces i have in the tank. can someone help me here bc im going nuts.. i wanna add new fish and plants but im waiting!