When should I switch my lights?

[M.B.A.]

This is my 3rd grow(2nd Indoor) and I was wondering when I could put the babies under my 400w MH? Since they have sprouted they have been under a Dual 4ft flouro shop light and are doing well.Hope to hear back soon:jointsmile:

M.B.A. Reviewed by M.B.A. on 12-12-2008. When should I switch my lights? This is my 3rd grow(2nd Indoor) and I was wondering when I could put the babies under my 400w MH? Since they have sprouted they have been under a Dual 4ft flouro shop light and are doing well.Hope to hear back soon:jointsmile: Rating: 5

[tinytoon]

My WW seedlings were 2 1/2 weeks old when they went under my 400w HPS (dont have an MH yet) and they are doing fine. I do grow hydro though and at the time they went under the main light they had roots sticking out of their 4in RW cubes. Hope that helps a lil

[VapedG13]

This is my 3rd grow(2nd Indoor) and I was wondering when I could put the babies under my 400w MH? Since they have sprouted they have been under a Dual 4ft flouro shop light and are doing well.Hope to hear back soon:jointsmile:

Go ahead and move them to the 400 watter set the hood at 2 1/2 feet from the floor this will promote growth and keep your stages close together.

Make sure you have a fan blowing for leaf movement:thumbsup:

If you havent added some Veg fertilizer now would be a good time

might I suggest some of this...its used for dirt and hydro grows Hydroponics, Indoor Gardening Supplies, Hydroponic Systems - home

It will tell you your waters PH by showing different color

Greenleaves Grow Juice (2-1-3) is a complete nutrient formula that contains all major, secondary and trace elements from natural sources. Grow Juice is pH buffered to correct most pH problems and has a unique visual color indicator for instant pH assessment.

[cigarettes42]

i had no problems when i started seeds from a 400mh. go ahead and do it. i would put the light about 2 feet and every day lower a little it or else your going to get stretching going on. 400 is fine you just got to temper those little baby leaves to that new strong light.