Harlequin (Fallponic RDWC)

WEEK 1 - 23/7/2021 - 30/7/2021 My 6th grow! I've managed to finally build a reliable RDWC system. It has been put on hold for nearly a year now. My primary concern is flooding when I'm not around. Another if there is any blackout affecting the water/air pump.  I've had the system on test run for a week now and it has been fantastic. No leak whatsoever! I'm so glad I decided to go with all PVC pipes and bulkheads rather than using vinyl tubing for the waterfall outlet. So far so good! Can't wait to transplant into the system. :) 20/7/2021 - 2 packs  of Harlequin seeds from Weedseedexpress (5 + 1), 12 seeds soaked in 10ml/L of Nitrozyme for the next 24 hours. 21/7/2021 - All 12 seeds transferred to paper towel and soaked with Nitrozyme and placed in humidity dome. 23/7/2021 - Only 5 out of 12 seeds germinated. But all 12 transplanted to small rockwool cubes, soaked with Nitrozyme mix water then placed in humidity dome. I accidentally cut one of the cotyledon while removing the shell. 27/7/2021 - 1L of water mixed with the following: Rapid start - 1ml/gal - 0.3ml Hydroguard - 2ml/gal - 0.5ml 30/7/2021 - It has been a slow start and the seedlings have been showing signs of nutrient burn. Out of 12 seeds only 4 properly germinated and even that is showing issues. I don't have a good feeling about these seed genetics. I'll give another week to see the growth response.