Latewood -

AIRSTONES: Each bucket (and rez which is the same size as buckets) has one of those 5" round weighted airstone disks. The pumps were the biggest they had at the pet shop. Each runs 2 buckets. The rez has a small cheapo pump running it. I have on hand a $300-350 airpump that I could use. It certainly would add more air! Probably act like a fountain in there with the pressure. I really thought I had enough air though. The disk looks a bit like this https://www.shop.trilbytropicals.com...5&categoryId=8

STALK - No, the bottoms of the stalks are nice & green.

RECIPE - Should I separate the buckets from each other? Or should I use this recipe for the whole system? Maybe I should tie them all off to preserve at least the one with good roots?

"I think the one plant is fried" - Which one would that be in the picture of the 4?

Oh - So are you now recommending not adding the additives and using the H2O2?

My gut is telling me to put something directly on the roots to oxidize the crap. I wish someone was familiar with Potassium Permanganate (PP, Green Sand). I have a fine high grade of it here. It's primarily used in water treatment but has many other uses like for ponds, treating fish ulcers, new water plants, etc. It oxidizes bad stuff and leaves the good. Much like h. peroxide. It's dosed in PPM. I'm envisioning a dip in a light solution. But these are not pond plants and I'll probably find zero information on their use with this plant.

OK Late - Are you swinging more towards fresh water & peroxide like Snoop? Or do I go back to your original thought?

Should I start some more seeds?