is it normal for my leaves 2 go yellow

hi every1 my clones have been in propagator for 6 days, in rockwool. i have benn spraying once a day with formulex.temp has benn 78f n humidity ihas benn 95%.my 200w envirolite has been 1 foot above from base of propagator. since i put the clones in propagator they have been tilting down and leaves curling inwards, and now 2day some leaves are looking yellow.what am i doing wrong or is this normal.plz help

No, not normal.

Sounds like the rockwool is being kept too wet. Using rockwool cubes? If you are, and they are the 40mm size, they should weigh 5g dry and 20-25g when just damp. Heavier is too wet. Saturating the cubes drives all the air out of the material.

Re-cut your stems and plug them in new RW. Keep the stuff only damp instead of wet and you should be able to save this lot of cuttings.

Check out https://www.rollitup.org/hydroponics-aeroponics/15030-batch-clones-rockwool.html

mite be a little help for ya

what temp and humidity should clones be?

air temp 27-30C 50-70%RH (non condensing), heat mat at 30C