are these ready to go under hps?

hey all im new to this are my plants ready to go under 600w hps currently under a 125w cfl blue. the humidity goes from 28% to 50% any ideas of how to high this ? and how much longer veggin before flower ? all input and advice needed

leehamer said:

hey all im new to this are my plants ready to go under 600w hps currently under a 125w cfl blue. the humidity goes from 28% to 50% any ideas of how to high this ? and how much longer veggin before flower ? all input and advice needed

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thats fine if you dont got alot of room, but i would let them go for another week or so.

IMO yes but don't put the light too close. Keep it at least 15 inches away and allow the plants to grow into the light. Do you have a cool tube? If not look into one. You might risk burning the crap of of them.

Yeah, go HPS. 18" at first and lower as temps allow.

hoss12781 said:

IMO yes but don't put the light too close. Keep it at least 15 inches away and allow the plants to grow into the light. Do you have a cool tube? If not look into one. You might risk burning the crap of of them.

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allow the plants to grow into the light? wont that burn them?

Obviously you would raise the light, but in the end you want to get the light down to 12" away .. but not at first when they are young and unacclimated to it. So Start out 18" above the tops and let them grow until it's 12" or so and then adjust it as they grow.

and how long more veggin do u reckon ? and its a hps duel spectrom lamp. what should the humidity be?

howold are those? 4, 5 weeks?

3weeks to 4weeks old