I do not know what to do I tried 4 types of meds!
My oscars look like they have HITH as i stated in my posts from a few weeks ago... They have what looks to be like as if you used a drill bit and started drilling it into metal for a little bit as to make like a round bevel indentation like that of what's used to counter sink a screw?
On one of my oscars there is actually a round hole eaten right through his tail fin like how a catapillar eats a hole through a leaf..... I been treating for weeks my water is perfect i been doing daily 25% water changes mostly and or every other day water changes.... I first used jungle pond fizz tabs with metronidazole then i used pure 100% grade tablets of metronidazole and this did not work so i mixed malefix bacteria stuff in also and it did not work also!! now i am trying a parisite type med... I been using the first to meds for weeks and nothing worked?

I don't know what to use anymore!! they are making me go NUTS!