Losi, yes that oscar does have HITH. I would say that a water change of 30 % every other day will heal it up unfortuantly this oscar is looking at pretty rough road for the rest of his life because if the diet and or the water quality dropps for a prolonged time then he will get it again. really IMO meds are useless the only way to do it is to make sure his diet is top notch and the everyother day water changes