i would use some epsom salt as well
to a gallon of watershould i use 1 teaspoon
you could try a foiliar feed with a bit of N and maybe a little epsom to keep them going till u can feed through the soil!
not really familiar with using bloodmeal but yea go easy with the epsoms anyway less is more, i mix up half strength for foliar and only mist them lightly because i have burned plants from too much in the past, happens quite quick! one maybe two light foliars wud prob do you till you can feed in the soil againima try i been foiler feeding with some bloom nutes can i do it with the blood meal and how much should i put a half of a teaspoon for the epsom and blood meal