some specifics on your grow? are you growing in soil or hydro and if its soil what soil, whats your drainage like how big are your plants. . hydro drip systems are usually meant to be on all the time and with soil you want to water them completely and let them dry out completely before you water again for me its about once a week, im switching them to flower today in big buckets too so it could be different for you but if your using soil i would definitely suggest wet dry cycles if you water them too much they can get root rot