Yellowing Leaves Habanero/Bhut Under LED
New to the forum here. I have had a look around to try and find the answer to the question I have.
I am growing a variety of chillies from seed, under two 300w rated LED light panels. Each light has a more realistic power output of about 180-200 watts. The cabinet walls are lined with mylar and there is an active air intake/output. Lights are on 18, off 6. The floor area is 1200mmx900mm and the lights are roughly 70cm above the plants.
All the plants are very stocky. I may need to stretch them by raising the light soon i think.
My Habaneros are VERY short and the leaves are yellowing heavily, at times almost going white.
They are about 6 weeks old.
I have been feeding them with Chilli Focus and given them some fish emulsion.
I am waiting on a ph meter so i can get a better idea of the soil ph.The soil is a mixture of organic potting mix for vege etc and perlite.
Is the problem a lack of calcium? will bonemeal help fix this? or should i just leave them and hope they come right.
Some of my bhut jolokias that were looking healthy are starting to show the same symptoms.
any help would be appreciated, i am very new to this.