You can certainly get a larger quantity of help there, that is without doubt. Most discus groups are full of a lot of people getting up there on the first peak of the Dunning–Kruger curve.
There are lots of threads here that contain lots of good information. And if you're willing to be a little patient, you cannot beat the knowledge here. Yes, it isn't as "instant" as Facebook, but the vast majority of replies there tend to be at best contradictory and at worst detrimental.
It wouldn't surprise me if half a dozen people told you she didn't have HITH or that theirs looked like that and Melafix cured it.
I believe you dosed about half the suggested amount and left a link to a thread about metro dosage, lighting, and duration. Hope it helps!