Fertilizer numbers ml/l are not correct, to much of a hassle to keep it documented, EC/PH are always correct.
Soaked the Rockwool in PH 5.5 tap water for 4 hours before placing the seeds.
Seeds took quite a while to germinate, probably due to low temperatures.
Mixed 150ml water with 1 drop of clonex gel, watered the rockwool with it.