How long did you quarantine the fish prior to introduction to your main display tank? How were the fish acting prior to moving them to your main tank?

I just reread your last post and you said the" two fish you got just a week ago are laying dead on the bottom". I take it you added these without first putting them in quarantine? What were they? They probably introduced something into your tank. Did you also add the water from the bag in which the fish were transported into your tank?