whats's wrong with her

[Myskellos]

Hello everyone, I'm new on the forum. Glad to be here

I'm growing indoor one quick one and one fat Banana from RQS under a marshydro ts1000. The medium is biobizz light in two fabric pots of 15 l.

I want to ask you what's going on with the Fat Banana... It started maybe with some drops of water on the leaf that "burned" one fan leaf, that has been removed. Now the same is happening with other two lowest fan leaves, but I'm pretty sure I did not spoiled anything on them this time. Those leaves are crispy and I think they're going to die soon. I checked for bugs, pest, whatever and no signs of them. The temp is between 25 and 15 Celsius , RH round 50%.

Now they are 22 days old, in the late second week I gave em biobizz grow for 0.4 ml/l and in the third week 1 ml/l.

I thought that maybe there is also some light burn (was at 50 cm from canopy), so I raised the light 10 cm more. As you can see the new leaf tips are somewhat discolored. In general she looks a little unhealthy.

Any idea? Thanks!!

 

[Luketheduke]

Light distance and power? I use the same light.

Doesnt look like water droplets burned it to me. That'd be a shit ton of water and burning. Its affecting old growth tho. Lower and outer leaves. Also some slight clawing.

 

[Myskellos]

The light was at 50 cm, now it's about 10 cm far away. The dimmer is 100%. I also think that is not a light/temp burn. Even because in this case the upper leaves would be involved, not the lowest. I did check some deficiency / toxicity but I don't see anything that look like this.

Edit: I double checked the deficiency thread, now I'm in doubt between phosphorus and potassium deficiency. Maybe should I link the thread in the infirmary section?