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The 250 will be fine.. But you will get tighter nodal growth (which means thicker denser buds) if you use the 400 watt bulb at THE SAME DISTANCE...
LIGHT PROXIMITY to foliage is key to BUD size!!!
iloveyou
but wouldnt it be better to use the 250 for say 2weeks.. then switch to 400?? i plan on switchin to 12/12 after say 1 month veg 12-14inches.. my reason for questioning your answer is becoz when i vegged my northenlightsxbigbud i used my 250hps as it was all i had.. 1 month veg and they was 12-6inches... great... then i grew bubblelicious n white rhino vegged with 400 they grew so slow at first.. i had to veg for 6 weeks.. but i know you know what your talking about.. its just i dont want to use the 400 have to have it say 16inches above the plants n they streach to much.. hmmmmm.. i think my prob is i worry to much lol as im fairly new to growing..3 grows i worryed loads bout em all verious times.. but they all came out fine.. with the exception that i never got 10oz a plant but hey thats just wishfull thinking haha.. well i started to germ my seeds today.. same way i did last 3 times.. and yes im worryin allready lol... even tho they allways germ for me haha.. damn i must say my recently harvested rhinos smell so good.. i crack open the jar hmm heven.. anyways im gonna shut up now... o except i may do a bit of a grow journal as i havent done 1 yet.. anyways thanks for your input Garden Knowm :thumbsup: