Thanks Andrew and Stan. I feel much better now...I was really worried when saw the poor things so scared. (I should have caught the problem earlier!!) Hey, this was a good experince.

How about the grey dots on my blue diamond? BD had it before the problem and they disappeared /faded after a light salt treatment.

after this temperature problem, the spots appeared again...I am watching closely but wondering what they are..(I need to buya good camera to take pictures)

Also, same fish has small fin rot for 3 weeks now and it doesn't seemed to grow nor heal...Should I just leave it?

Thank you!!
Fethi