hi iam new at growing

[waterman]

i have 4 week old seedlings under 400 watt lite. should i be putting nutes to them. and should i pinch them? they are going to be put outside.

 

[Locked]

Welcome to MP....4 weeks old and not fed yet? I wld think it wld be hungry....pics?

What type of light? HPS? Size of your grow space? Ventilation?

 

[waterman]

metal halide lite. got fan on them. they are about 7inches tall. good strong stems.

 

[waterman]

at what point should i sex them?

 

[v35b]

ostpicsworthless:

7" is abit small for 4 weeks...Give them some food...imo

 

[Mutt]

at what point should i sex them?

they are going to be put outside

If your going to put them outside then you should wait until they show pre-flowers on their own. Otherwise you will waste a month or so re-vegging it which will hurt size and yield come harvest season. They should show pre-flowers in about the 6th or so week indoors. I would already be adjusting the light to coincide with the daylight hours outside. I don't even know why they aren't outside now. you're wasting elec. in my opinion sunlight is free

 

[waterman]

the reason they aren't outside yet is because we could still get a frost where i live