Quote Originally Posted by steezyd
ok so Im using sunshine no.4 soil less mix(no nutrients in soil) and i tested my runoff after the first week of veg and the ph is 5.7-6.0...I would like it 6.3-6.6 but i didnt mix any dolomite lime into my soil like i probably should have...So what should I do to raise the ph? i know giving it higher ph'd water is a quick fix, but that doesnt seem the way to go, can i put some lime just at the top of soil?maybe 2 inches deep or so in certain parts and just continue to water?

any advice would be great, im not a total rook, but no expert by far

thanks in advance
sunshine no.4 is pre-buffered with dolomitic limestone. it also has a "starter nutrient charge". you should start feeding 7-10 days after transplanting.

it is mostly sphagnum peat moss. this has a very low pH (around 3.0-3.5). the this coupled with the fact that the lime can wear off can cause pH issues.

when did you transplant into the 3 gal containers? if it's been less than 2.5-3 months it's not a lime issue.

what is your ingoing pH? what are you using to test with? how do the plants look?


-shake