Root Rot need help immediately!

In FF OF Soil..

So turns out a few of my plants have root rot. They've been like this for 1-2 weeks. They are also my biggest plants and I've had to water them a lot. The leaves always got droopy and I was wondering why. Watering almost immediately corrected it, but now it barely seems to have an effect.

Symptom: The stems of the growth tip are flopped over, semi-droopy leaves, but overall leaves are all still green.

I've heard Hydrogen Peroxide helps, but how much should I add?

Should I try and remove the dead roots? Transplanting is an option but I must remove half the root mass because of the way my pot is set up.

sucks cus they just barely started flowering.. anyone know how to get through this with 100% success?

try letting the soil dry out then water with a hydrogen peroxide mix. try a tablespoon per gallon (3% hydrogen peroxide)

For the future, make sure and let the soil dry out well before watering each time.

actually, I transplanted them all but I didn't see any or much sign of root rot. They're not root bound either so I wonder what's causing the droopyness. perhaps they don't have enough roots to support water uptake?