Ideal ppm for new plants?

I was wondering what people feel is the ideal ppm for newly rooted plants in Rockwool.

I've been having a lot of problems keeping them alive....they're rooting well, but them I seem to be killing them once I move into the tray.

I'm keeping the ph around 5.5, but I don't think the nute solution is correct.

What have people done, what nutes do they add, how often do you water, newly rooted plants in a 3x3 tray?

Any thoughts would be appreciated .

D

Freshly rooted I'd use nothing for a week other than a bit of superthrive. After that I'd go 200 ppm for another week. I'm sure others are more aggressive and there will be a million different opinions on this.

supchaka said:

Freshly rooted I'd use nothing for a week other than a bit of superthrive. After that I'd go 200 ppm for another week. I'm sure others are more aggressive and there will be a million different opinions on this.

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Thanks for responding--since whatever I'm doing is not working, I'd love to hear different experiences out there, to try something new...I've killed three batches now, so I'm obviously doing something

I've heard others say start lightly, and then get a little bit stronger concentration every week...I might be too strong for them right now--

I've had a lot of success in soil, but I'm just doing something wrong trying to make the transition to rockwool. Thanks for your feedback!