I meant of most questioned retailers, unfortunatly that't what they will tell you, your loved one has. Taking very timid action against, many times deadlier deseases. I've been doing this every day for 16 years and that's what I hear the most.
Once the fish is dead, saying sorry thats the only desease that I knew of that fit that discription. The only way to be sure is with asking places like this and even then the only sure fire way is to net, swab,and magnify the results.