first grow need help

i have 8 plants growing under 400 w hps and some of them have stopped growing while others are very healthy i water 1 time everyday they have been on 18/6 but i just switched to 12/12 about a week ago. please help!!!

Water enough so there is water coming out of the bottom of the container, and wait to water again until the soil is mostly dry. Everyday is a little much.

something simular happend to me. Try rotating them, and measure how far away your lights are. hope it works out.

That's some serious leaf curling going on.... What kind of soil, nutes, and water are you giving them? What size are the pots? Watering everyday might be too much.

I am using some cheap scotts potting soil and giving them tapwater that i leave sitting out overnight . the pots are 1 gallon.

twatson said:

I am using some cheap scotts potting soil and giving them tapwater that i leave sitting out overnight . the pots are 1 gallon.

Click to expand...

I've finished in 1 gal pots before, there's very little room for error once they fill out. In your situation, I'd transplant into 3 or 5 gallon buckets (with drain holes of course) and add a shitload of perlite and a cup of powdered lime to the soil.

Once you start flowering, you want to eliminate stresses because that can result in longer flowering times or worse, hermies. Therefore, most growers transplant into their final containers a week or two before flowering (I do it the day of, have to flower for 9 weeks but it's more convenient for me)

Also, stop watering everyday. Your roots need oxygen, let the pots get light before watering them again.