need advice, hydro nutes in soil.

i am currently using sunshine organic mix as my soil. in my reservoir for every gallon i am using 1 1/2 teaspoon of gh flora gro, 1 tsp micro, and 1/2 tsp. of bloom. oh also 1/2 tsp of fish emulsion. my clones are still turning yellow like nute burns, mostly on the bottom leaves. leaves still turnig yellow. ive read up on nute burns and how to correct them but still im not getting anywhere. ph is at 6.5-6.8, lighting 1 1000 hps about 3ft away and 1 400 mh about 2 ft away. clones are grape ape and purple urkle. my ppm is about 2000, temperture is around 70-78. please help i had 40 that died on me already and luckly he reimbursed me.

 

How long has it been since you cut them?

ive got them replace this past tuesday and they have labels on them of 11/18 so i think they are like 4 weeks old.