Yellow Angel white stuff around gills

[Natelb44]

I bought this yellow angel 3 days ago and he has been swimming around good and has started to be more interactive but it has some white stuff around its gill on the right side. Could these be gill flukes? It has not shown any other symptoms yet but I don't want it to get bad. If these are flukes what should I do and would paraguard do anything to help? I hope the pictures are good enough to see what I am talking about they were the best I could get in the video I took he is still a little camera shy. Please let me know what you all think this is and what I should do.

My tank is a 56 gallon tank and the parameters are the following
Calcium 440
Nitrate 0
Nitrite 0
Ammonia 0
pH 8.0
Carbonate 11
Phosphate 0.5


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