black spot

I am sorry for asking again, but can I ask for some help again? Today I just notice something off from my leopard bush fish. Around its snout, there are some white patch that is not cottonlike but more like a lesion (red circle in the photo). But there are also some black dot around the margin...

Pterry molted about 4 weeks ago, and since then, I started noticing a small dark spot on the undercarriage in front of his back left leg. It has been getting progressively bigger. I think that leg seems to be not doing as much as it used to. The local pet store did not recommend a salt bath...

Pterry molted about 4 weeks ago, and since then, I started noticing a small dark spot on the undercarriage in front of his back left leg. It has been getting progressively bigger. I think that leg seems to be not doing as much as it used to. The local pet store did not recommend a salt bath...