Nice to see some faster growth starting. Had a problem with the thermostat controlling the heater which led to a colder night than they would've liked, the leaves on the younger 2 showed signs of stress. One of them also has some slight yellow spotting on one leaf, not quite sure what it is yet, the rest have no signs and haven't had any other nutrients apart from the EcoThrive yet.
@Theia, Yeah I will be, Just did the biggest one now as it was stretching a bit close to the light. I'll be doing LST and SCROG early veg and super cropping when they're a bit more established :)