Please Help VersaGrow Drip System

Im wondering how often i need to feed my plants (they are fresh clones) im using a versagrow drip system im looking to find out how often i will need to feed my plants starting from now through the end of my veg stage they are each in a 4" rockwool starter cube that i have placed in hydroton that is filled just to the top of my cube the buckets are 3.4L . I will be switching to an ebb and grow with hydroton as well for flower.
Thanks!
:weed:
 
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