Alright - Another quick update.... The tallest two plants (both Trainwrecks) have reached 41cm in heigth. The two smallest plants (both White Rhino) are approx. 28cm. The pots are getting noticeably lighter and I think I'll give them another watering tomorrow with full strength Bio Canna Vega nutes.

Now, even though I hate having to switch to 12/12 with some problems still existing (and especially unsolved/unknown), I believe I have no choice but to make this the last day of 18/6 and flip 'em to 12/12 tomorrow.

What kinda helps put my mind at ease is that they'll receive full strength nutes tomorrow and hopfelly this will also help with the droopy leave syndrom a bit, until they have recovered. Afterall - Plants do look fine for 12 hours of light.

Personally, even though I don't really have a clue what I am doing here and/or what's going wrong - I am starting to have a strong feeling about this being an issue with the starving and not having enough nutes available.

@ Diesel: Thanks for sticking to this thread bro - I truly appreciate it! Otherwise, I'd be lost completely....!