Auto Orange Bud vs Auto Lemon Zkittle

Here we are on week 6. My ladies definitely turned into the flowering stage however the 2 orange bud growing completely different. One f them shows some nutrient deficient and tried to treat with som epsom salt due I believed its no enough sulfur in the soil. It's strange because all 4 girls get the same water. I did some cleaning on the other OB just took the little shoots from the bottom to 1/3 of the plant. Lemone skittzels are growing strong healthy and the same way.