I've had this PBT in quarantine with a Foxface for the last 45ish days after using hybrid TTM to treat ich. My DT is fallow, has been at 82 degrees and has been fallow 60 days as of today, so the plan was to reintroduce him today. This morning I noticed these brown blotches on his skin. Are these stress spots, or a bacterial infection, or something else? Need to know if there's something else I need to treat him for so it doesn't spread to my other fish! thanks!