Quote Originally Posted by Max Blast
I started some clones two weeks ago. Used rooting hormone powder and put them in the small rockwool cubes. Mixed up a small batch of "Dutch Nutrient Formula" (2 part A & B) and set the Ph at 5.5 to 6.0 area. Put them into a cloning tray under a humidity dome. Light is a flourecent 6500K 20watt from hydro store.

The first 4 I did this to seemed to work OK with 2 of them showing roots poking out the bottom of the rockwool cube at 11 days. The other 2 are on day 13 and still not showing any roots outside the cubes. I put the 2 that showed roots into the bigger rockwell cubes (4x4 for SOG) and back under the dome while I set up my vegging cabinet. (vegging will be using CFLs down close to the plants)

My question is this. Should I be feeding nutes like this during these early stages of the rooting/cloning process? The bottles say "for Seedlings and cuttings" but I have read other posts that say no nutes until 4th set of true leaves.

I have grown sucessfully in soil indoors but this is my first hydro grow. I have since started several more clones (a few days apart) and they seem to be doing OK except for 2 that appear to be dieing. I have so far used the exact methods described above.

Would like some comments from sucessful rockwool growers please. I know one very sucessful rockwool grower whose advice has gotten me this far but I am looking for second opinions on this stuff.

thanks a bunch,
Max Blast

Flush your rockwool cube with pH 5.6 water until the run off got 5.6 pH. It is the best way to stabilize the pH of you rockwool cube before use. .
If you like to feed your plants during these early stage I would suggest you give 1/4 strength of bottles' direction.
Be careful with overwatering issue when using rockwool.