I just got a crown tail betta fish the other day and noticed that there is a gold powder on him. I do not think that it is his natural iridescence because the gold stuff is clearly powder looking and does not shine or shimmer. I have him in a 5.5 gallon tank with plants and a hide. The water is 82*F because I think that this is velvet and have already sort of began treatment (via heating the water and dimming the lights). Medicine is on the way for him but I just need to determine whether or not this is actually Velvet. The only symptom he has is the powder. Please help me!