New Grower Fungus or nute deficiency

[JayEire]

Hi guys,

Anyone able to help with IDing this problem?

Strain: RQS royal dwarf; 6 weeks old
Soil: peat moss mixed with store and homemade compost
Nutes: Tomato fertilizer
Environment: greenhouse; day temp 20-25C RH 15-30, night 10-15C RH 40-70

I've two plants growing but this issue only affected one of them.. I have separated them now but wondering if there is any thing I can do to save this one?

Thanks again.

 

[Jimmythenugg]

What PH you going in at @JayEire

Gonna suggest ease off food too if the soil is charged and your adding nutes too (tomato feed is alright for veg only!) You maybe overloading.
But PH is critical and you don't mention it....

 

[pop22]

That's the classic sign of Calcium deficiency. Give her some CalMag

 

[JayEire]

Thanks for the reply guys..
pH is 6.5 sorry forgot to mention

I will try some Calmag and see if there is any improvement!!