Sick fish?

[takeastabatit22]

Okay I decided to buy some more expensive fish.
Last week I picked up 2 8 line wrasse and a cresent wrasse.
The cresent wrasse acclimated just fine then what straight to the corner of the tank and layed their then I haven't seen it in a week.

Then one of the 8 lines started getting some larger white discoloration and raised scales?
So I started feeding anti byotics. Kanaplex and focus. 3 days latter the female 8 line know has one starting. And now the foxfaces has something going on. Same kind of look.

I am new to the fish world and have just finished lowering nitrates (what a battle) still working on phosphates. So a lot of water changes.
Any idea of sick fishes?

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