Is this a calmag def??

Hello to all,

So as you can see I have this issue, with so internet studying it looks like a magnesium deficiency so I have started to give 1ml of calmag in 1lt of water.

I know temps are very high but is it a catalyst for killing a plant?

Shall I keep feeding my plant the recommended dosage of 1ml grow-heaven-activera?

Shall I start adding the organic bio bizz bloom instead of the calmag?


Thank you

Here is the set up

LIGHTS

DIY Vero 29 @ 150watts

TENT

LightHouse MAX 0.5m

VENTILATION

TD-160/100 TD SILENT

SOIL

Bio bizz All-mix

FERTILIZERS

biobizz grow-heaven-Acti vera

POT

14LT

TEMPS

26-29c

RH

40-50%

TIME

2 Weeks Flowering

WATER

1lt very two days (Rainwater)

She's short on Mg. You can add epsom salt to your feed or foliar spray with it if you'd prefer slightly quicker results. Nice plant otherwise. Good luck.