hi, i would hold off feeding just yet till you get the ph at a good level,
reason being is i re-potted mine last night, because the soil in the baby pots was acidic, and also the soil i was going to use for my main compost was acidic....
so i gave the new soil a good flush before i transplanted and got the ph somwhere between 6.5-6-9.....it was like 5.0-5.5 before.

my plants seem to have perked up a little bit overnight.

im sure somone will know better than me...but my guess is that the acidity of the soil is preventing uptake of nutes causing the yellowing, rather than there not being enough nutes as the soil does have some ferts in it. hopfully somone else can offer thier input on that one.....? anyone...

some pics of my plant in thier new home..