over irrigation problems and recovery

I think they are getting too much light, and you are not watering correctly. Also, have some nitrogen-deficiency on at least 1 of the plants (paling tip-in on leaf and bottom up on plant). I'd raise the light 2-3" and i bet within 5-7 days they perk up. the longer they've looked this way, the longer it takes to perk back up. The top-down picture looks like 3 nodes are right on top of each other, so it's been getting too much light for a while at this point. Proper watering - 1) fully saturate.. none of this choosing 100mL or 150mL in some top-down whimsy. The volume it takes may vary, but if you re-irrigate at same loss of weight, it will require teh same volume. You learn in hindsight only. (or familiarity from consistent past behaviour). If this is soilless medium, you fertilize every time and religiously get 10% runoff. This prevents buildup over time. Any symptoms under normal circumstances is a matter of fertilizer formula and nothing else. (these are not normal circumstances) 2) Wait for appropriate dryback and repeat. If it droops temporarily after an irrigation, that means you need more perlite or similar to improve the gas:water mixture of the medium. It won't derail a grow, but in future add some amendments that improve aeration/drainage. Coco base medium needs 1/3 of volume perlite or similar. Sphagnum peat moss or a potting soil need 1/2 of volume to be perlite or similar. It's gardening, so being off a few percent is irrelevant, but these are the numbers to shoot for. ---------- Before messing with fertilizer ratio, I'd raise the light (or reduce power a bit) and employ proper irrigation habits mentioned above. If the deficiency quickly moves up the plant, go ahead and raise nitrogen concentration while maintaining current levels of other elements, since the plants look healthy otherwise. Too much light could be causing and definitely exacerbating the N-deficiency. At least see the effects of the light, and less so proper irrigation, before deciding on degree of increase in N. There's a chance the paling reverses course without adjustment