Last week I bought 6 C.loxonus from the LFS I work at after carefully expecting them and seeing nothing wrong I decided to bring them home. I Introduced all 6 into my well established, healthy 55 gallon Amazon tank. One of the 6 specimens has developed two white patches (one just above the snout in between the eyes and another on the right gill plate making a more noticeable bulge than than the on the in between the eyes). I know you guys need pictures and I'll be posting some when I get home tonight. It isn't fluffy like fungus and its way to big to be ick so Im kind of stumped

Tank: 55 gallon
Substrate: Seachem Onyx sand
Tank mates: 7 Lemon tetras, 17 glass bloodfin tetras, 11 penguin tetras, 7 L134 (peckolita compta), 4 L103.
Decor: tons of Malaysian drift wood
Plants: Amazon swords over 13.
Temps: 77-80 F
Filter: Fluval 306 External canister
Ph: 6.5-7 haven't checked it for a while, I check it again tonight
Heater: Fluval M200
Action taken: Put into 10 gallon hospital tank bare bottom, Fluval C4 filter, Fluval M50 heater.
Medication: None
GH/KH: unknown but can get if needed
Please help as much as you can with whats given, Pictures and test will be added/updated tonight.
Thanks in advance
James