Plants sagging need some help

Assuming maybe it might had some problems with being too acidic from the oxygen that came off when I ran h2o2 to kill fungus gnats. Was watering too much at first but been waiting til dry and light. Cup was light but they are still drooping like I overwatered. Maybe ph?

Looks like an over watering issue maybe poor drainage

Maybe too much light, those tiles look pretty shiney and could be too reflective. Are you using t5 lights? Maybe try taking all bulbs out but one.

It needs a bigger pot.

Grow big 3 said:

Looks like an over watering issue maybe poor drainage

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Indeed it was lol