Bang on the charge mate... It will need a bit of Nitrogen to get to the end If its only had water.. There will be bugger all in it... I like mine dark green n shiney at this stage.. Life cycle is different kit.. You use it to cook in your used up soil before the next grow so it won't release like an actual feed like charge which is insect frass... It won't hurt it as it slow releases over weeks... Liquid feed works straight away.. But top dress opens up over weeks with only a bit available to the plant immediately..