Hello Student,
the problem seems to be solved. I think my rockwool cubes were too basic, because not soaked enough in an acid solution before using. I made an other try with more care and it's going on good, better than the other that are in a bubbler system without any fert for the moment and look healthy now.
Send a pic as soon as i'm able.
Fhydro
fhydro Reviewed by fhydro on . From seedlings to bubbler Hello, i recently put some seeds to sprout in rockwool cubes. Now, the roots begin to go outside the cube. Can i put them now in a bubbler system, or do i have to wait a while ? What quantity of ferts can i put into the water ( I use flora grow, bloom et bio ). Any suggestions ? Fhydro Rating: 5