Last night I noticed my Royal had what looked like Velvet all over it's body. He was acting odd which was the first clue soemthing was up. I had just added PFS to the tank so didn't think much of the behavior until I got a good look at him. and still wasn't sure if it was just PFS particals or what... but decided to play it safe anyways and did a 30% WC on the tank and a 1/2 dos of melafix. Well woke up this Am to him belly-up =(RIP lil' buddy. Had him about 2 yrs and he was 5.5inches.