Nitrogen deficiency or Nute burn?

[herm]

https://imgur.com/a/E72WOon#ize5pTu

I'm learning a lot along the way of my first grow. I still don't know why this plant doesn't look 100% healthy. I asked around and someone said nute burn, someone else said nitrogen deficiency. I can't really tell what it is. It's worth noting that my other plant in the same tent looks fine aside from a little purple.

pH 5.6-5.8
PPM 400-430
Water temp 17-20°C
RH 45-55
Room temp 19-24°C
Light distance 24"
Water level just touching pot
1/3 the recommended nutes at 5ml

What does the problem look like to you guys and what can I do to help this thing look healthier?



1 wk ago for reference https://imgur.com/a/AmRbfxk#YwoHCvr (looks better but not at 100%)



Thanks

 

[starramus]

the burnt tips say nute burn, but the light green color says nitrogen deficiency. You are in a quandary. What are you using at 1/3 dose?

 

[herm]

the burnt tips say nute burn, but the light green color says nitrogen deficiency. You are in a quandary. What are you using at 1/3 dose?

This plant is 2 weeks old, at maybe day 4 I added 15ml of nutrients which may have burnt it, then I dropped to 5ml which may cause the deficiency. Although my plant looks better than a week ago in terms of colour.

1 wk ago https://imgur.com/a/AmRbfxk#YwoHCvr (huge improvement imo)

Using pH Perfect trio and a 2.5ml of CalMag (half strength)

I think tomorrow when I change res I'm going to do 10ml of the trio and 10ml of the CalMag and see how that runs.

 

[Jordann]

I'd say ....what brand nutes you using? I'd use a gro nute or something that only has nitrogen and not the full npk nutes. It does look like it's got a light green to it and I always try to keep em dark green but not burnt with my grow nutes. It's a bit of a catch 22. Could you change your water to fresh pH water and just keep an eye for a day or to. Not a rush, it's still alive and looks decent. It's got a good life in it. I wouldn't do too much till another set of leave come come out on top the plant.

 

[herm]

I'd say ....what brand nutes you using? I'd use a gro nute or something that only has nitrogen and not the full npk nutes. It does look like it's got a light green to it and I always try to keep em dark green but not burnt with my grow nutes. It's a bit of a catch 22. Could you change your water to fresh pH water and just keep an eye for a day or to. Not a rush, it's still alive and looks decent. It's got a good life in it. I wouldn't do too much till another set of leave come come out on top the plant.

Thanks, that's some good advice. I'm using pH Perfect trio. At first I was doing 15ml. I'll try plain 5.8 pH water for a few days, if that makes it better or worse then I'll know the problem and go from there.

Here's an example of how they were last week https://imgur.com/a/AmRbfxk#YwoHCvr they look better but maybe 80% of the way there

There's a good chance that something I did early on that caused this. Next time I grow I'm keeping nutes out of the story until 2-3 weeks in.

 

[Jordann]

Looks like it's. Catching up or healing so yea you'll find out after a few days if it's getting better or worse. Keep updated. Got lots of life in her yet.