The API General Cure was added as a safety precaution for one of our female Mollies who has a little bit of skin peeling off. We figure she might have just been rubbing up against the sides of the breeder box she's in (she's due relatively soon), but just to be safe, we did a dose of it.Water parameter's described as good/normal,within range,are subjective opinion's.
Meds can sometimes have undesireable affect on fishes and also plant's.
According to previous post's,you treated for fungus in Feb and now with API general cure for ??
My money is still on diatom's that normally go away as mentioned afte a couple month's but have been known to hang around longer.
Can wipe the diatom's off the glass with clean paper towel ,rub the stuff off large leaves,vaccum around the plant's to remove it from the substrate,and keep filter material cleaned regularly.
Otocinclus love diatom algae, but your previous post's indicate molllie's in the tank which thrive in hard alkaline water that otocinclus don't appreciate .