What does it look like? found out the LFS store i got my silver doller at had a fish with Ick so he told me to check my fish i got there.. what would i look for? my silver dollar looks like he has 3 little dots on him but i cannot tell if it is just his silver coat refecting.. would it be bad to use that Ick away just to be safe? will it harm them if they do not have it?