I have 3 mothers under a 250w hps right now theyre all about a month old but growing pretty slow... Would there be any disadvantage to putting my 1000 watter over them till they get bigger then putting them back under the 250watt?
It could definately cause it to not be able to keep up. But if you have 1000w of light, why not go ahead and use it the whole time? 3 plants with 250 doesn't give them very much to soak in. It'll make the buds nicer too, the more light they get, the nicer and better they'll be.