Hello willyblue,
the problem is less important now but still exists. I have to adjust every 2 days, but I start from 6.5, maybe i should try like from starting from 5.5 also. I think that did not soak enough the rockwool cubes, either not enough time, either not enough acid solution. Lastly, 2 days after being 6.5, it was 7.5.
I don't use PPM meter, neither PH meter. I use PH test with reactive solution, and I put 3 ml floragro, 2 ml florabio, 1 ml florabloom in 2 liter of water. And you ? Should I get a PPM meter ?
I grow skunk special from female seeds and hazexskunk from nirvana seeds. I am starting also afghan from nirvana seeds in soil to compare.
Any way, i find that for one month of growing, my plants are very little.
Thanks for your help ..