Hey guys I recently got a new blue hippo small in size but has been fine with my yellow tang for the last few days the other day I noticed white spots on the hippo so i went and got kick Ick and the rally they come together so I did 2 doses of the ich treatment as well as 2 of the rally for safe measures and my yellow tank no has black dots so I am unsure if this is ich or para vortex black spot disease the yellow tang was by the cleaner shrimp all last night and he now seems to have no black dots hoping they didn't burst and get all over the tank but we will see what happens has anyone ever delt with this before or both also the freshwater dip seems very extreme and most fish don't make it is there anything else I can do and if the black spots are gone is the parasite I think I knwo the answer to this one but we'll see the range are eating fine and the yellow tang seems normal but the blue hippo doesn't seem that good earlier he was scratching at the sand now he's laying on a rock not doing much I hope they both make it i have. 120 gallon and the tank is about 3 months old any help or advise is much appreciated thanks guys