Is this light bleaching?????

[Phenom85]

I was running my 600 watt hps at about 8" away it's not hot at all. I can grab my cool tube with my hand and hold it there.

 

[Phenom85]

I'm new to hps (was running t5) and I thought that the whole reason for the light distance was the heAt, so I figured if I can keep it cool I can get keep it close to keep tight node spacing. I have been reading and discovering that even if it's cool the rays from the light will bleach the tops. I moved the light up to about 14" now, and hoping that fixes the problem.

 

[Liddle]

looks like new growth too me...

 

[Yodazherb]

Too much ribz showing
Back it up a bit.
Are you giving her Nutes already ?

 

[AimAim]

I was running my 600 watt hps at about 8" away it's not hot at all. I can grab my cool tube with my hand and hold it there.

Awesome . . . .

 

[Phenom85]

Still giving veg nutes. 4ml per gallon of AN sensi grow

 

[topfuel29]

IMO-Your light is way to close. These charts should help you out.

Good Luck on Your Grow.

 

[*BUDS]

at about 8" . I can grab my tool with my hand and hold it there.

Good for you.

 

[Phenom85]

So 18" should be ok? I'm just trying to get the most I can with my light

 

[cues]

I had a similar problem. https://www.rollitup.org/marijuana-plant-problems/546559-help-cant-work-one-out.html

 

[budleydoright]

So 18" should be ok? I'm just trying to get the most I can with my light

If your going to keep the light as close as possible and only illuminate a couple of square feet, get some t5's. You use a 600 to cover more area, not to burn the fuck out of whatever's under them! It does depend a bit on your hood. I have run water cooled lamps that were cool to the touch that still required 30-36" for the best results.

Raise your light to give you the best coverage over your garden. For a 600 this should be around 24" to cover 3x3- 4x4 space.