Is this a potassium deficency?

i think thats the same prob with my babes.. been prob over a month in some FFOF soil in 1 gal pots, way overwatered im thinkin and the lower leafs turned yellow/white so i cut em off and fed em with some grow big / big bloom. hope they will do good with that... we'll see in a day or 2 =0

Just a quick update. I fed and watered as planned Thursday morning. This afternoon when I checked on them, plant #1 had grown about 3/4" I didn't notice any difference in the others, but I didn't measure them to begin with. No noticeable changes in the leaves yet, but it's probably too early to expect any. #1 still has droopy leaves, but none of the others do. I'll post some more pics in a couple days, or whenever I see a difference.

The pH of he runoff when I watered was 6.8 if anyone is interested.

Five days after watering/feeding I can't say one is clearly improved more than the others. They've all grown taller and so far the newer leaves are all growing in green. I think the reason #1 is drooping is because the heat from the light was blowing directly on it. That has been fixed.

#3 looks healthiest to me, but it wasn't as bad as the others to start with.

Here's #1. Blood meal, chicken manure, worm castings, super plant tonic

#2 Flushed, then plain water only.

Ph is fine now. New growth is all your concerned with.it's growing and green .they are on the road to recovery.well done

#3 mg 24-8-16

bonghits,
You and kp were a huge help and I just want you to know I appreciate you taking so much of your time to help me out.

Its what i do. Not a problem glad to help.