Welcome to the forum @Andy77! 2 in soil and 3 in rockwool? How deep did you plant ? Which way did you put tail? Soil looks a little dry!
Make sure they are moist but not soaked then I’d say cover with a clear dome of some sort solo cups or something and see what happens good luck
Planted bout 1/2 with the tail down I’ve grown plants before but never made it to harvest. The soil isn’t dry maybe it’s the picture and I have the clear cover on the dome.
Depth is good,tail down, so that leaves watering or the seed is a dud! The soil looks dry as you stated, the cubes are hard to tell? if you are gentle you may remove some soil around her and see what is going on, or give them a few more days! I have only had 2 seeds from ILGM that did not even sprout, I would think 5 of same strain no way! What is temp setting on the mat?
They sit in a tray with a clear cover the temp stays 75-80 and humidity is 45-55
Humidity should be a little higher, but what it is, should be OK