Is this red leg syndrome or an injury? Please help :(

My golden axolotl is just under 2 months old. His/her name is Noopers and I love him very much. Early this week, I noticed white fluffy fungus growing in my 10 gallon tank, so I quarantined my axolotl, cleaned the tank, and am keeping my axolotl in quarantine where I preform daily 100% water changes until the tank is safe again. I also gave him a tea bath. However, I noticed this morning that one of the front legs has turned red. I fear it could be red leg syndrome which is fatal. The only vet that can treat this is 2 and a half hours away and I do not have the transportation. I sent pictures to my breeder and she said it is likely just an injury, but I would like a second opinion.
This was noopers before illness:
https://imgur.com/1YAsVNf
This was noopers a day ago (notice the bent leg):
https://imgur.com/Q9wRxLo
and this is that leg now(please scroll down to view all 4 images):
https://imgur.com/a/WDvCtFw
What can I do to keep my baby healthy? I really want to see him get though this, thanks

Update- I have confirmed that it is just a minor leg injury and Noopers will be okay The redness has gone down dramatically and he is using his limb again

So glad to hear that!