Five plants in an indoor tent. Four of them look happy and healthy. This one is a much lighter color of green and has developed these brown spots on some of the leaves. Same light, same water, same TLC. Anyone seen this before?
@Budbrother my guess is phosphorus def. but im terrible at this.
Need more to go on. Whole plant pix. Not P for sure. It’s gonna be a chlorophyll molecule
It needs N judging by lowers. Probably also needs a Mg boost.
I’m with @Budbrother in that I think we need some more info on what you have going on here. Do I see a drip system that is split off to all the different plants ? What are you feeding them ? What is different in that one pot ? Is the plant in the right hand corner starting to do the same thing ?
@Budbrother would a shot of epsom salts maybe bring this back around ?
I admit I didn’t even see the lines and only looked at leaves. The one in the back right appears just to be the lighting to me. No signs of Zn def to indicate pH off.
Yes, Epson (Mg) is needed with Nitrogen. There’s an uptake synergy between N-Mg-P and I’m betting there’s lots of P available.
Possibly was cut back on N too soon and it burned off during stretch?
Looks like lock-up. But why 1 and not the others ? Again I’m assuming they are the same strain, in the same media, being fed the same thing. Need more info. Epsom should solve the immediate issue.
Looks like back row is older than front. Might have to do with that and being more recently added - having been feed proper N numbers
Yes it is a drip system. It’s on a timer 20 minutes in the morning and 20 minutes in the evening. I used ocean Forrest and have been watering them with plain bottled drinking water. The plant to the right is lighter in color but no brown spots. It has a different shape to it. Taller and not as bushy. Looks like a different strain. All five plants have had identical treatment. 18 hours light 6 hours dark ever since they sprouted. 3 of the five look really nice, one taller and not as full and the one with the brown spots. The spot do not appear to be mold. They don’t wipe off.