PPM Nutes?

ok i have a rubbermaid bubble setup, just put sprouted seeds in rockwool into hydroton and 3'' netpots. ok now my tap water reads 160ppm after sitting out overnight.

now my foxfarm schedule says:

For cuttings and clones, use week 1 schedule at ¼ strength until rooted. so ppm at week 1 is 1120-1260ppm which would be about 275ppm at 1/4 strength.

My ppm right now is 260 (ph 6)which seems good, but should that be 275ppm plus the 160 i already had or am i ok with the 260?

thanks

im a idiot, i think i found my answer, "You have to account for the mineral and whatever else may be in ur water. So if you want a 800 feed add 550." Now does that sound right and is my ppm ok?

Do not add any nutes just yet... wait for them to start growing..

i already added some only 1/4 strength though, some say to addem some say to not addem. so we will see what happens, no roots through the pots yet.

Im growing a similiar method... check out my grow

yea ive read through your joural and got it bookmarked, looking good, ill be watchin. I find myself constantly checking the ph and ppm and everything seems good, so hopefully it keeps up. everytime i look at them i can tell a difference!

I would definatly go against giving them any nutes till they are atleast 2 weeks old.