Transplanted the 1317's to their temporary bubble buckets...
Made a mix of rain- and tap water (EC 0,4) and added CANNA Rhizotonic (root stimulator) + CANNA Aqua A/B (nutrients) to end up with an EC of 1,0.
Lowered the pH till 5,6 with CANNA pH- pro (has to be between 5,2 - 6,2)