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I'm using VI Tech 93f T10 bulbs
4800 hours life
The bulbs are a couple inches above my sprouts.
My sprouts do great until they start to grow about their third set of leaves.
Then they get purple spots on them about the size of a pinhead.They look like they got overspray from paint on them.
Shortly after they turn purple from the ground up.
They stay that way for a couple days then they start to drop their leaves or get sick looking.
The sprouts I have that are supposed to be purple turn a very shiney black color and don't go bad as quick.
If I take the plants out from under the lights they loose the purple and turn yellow and the leaves drop off.
It's like the plants are addicted to whatever spectrum of light these bulbs put out and they go into shock if they get put into sunlight or any other light source.
I've tried putting the plants in shade outside,in total dark for a while then only short periods of shadey sun,and under 3 different kinds of other flourescent lights(Philips plant and aquarium bulbs,Philips Ntaural Sunshine,and Otts full spectrum).
The plants don't like any of them so far.
Right now I'm putting 1 bulb VI Tech and 1 bulb of one of the other bulbs in my 2 bulb fixtures since my plants seem to go into shock if I just switch lighting all at once.
It hasn't been long enough yet to see if the plants that lost their leaves will recover from their leaf loss.
I've never had a problem with lights like this before.
Has anybody else?
I'm thinking that maybe the V Tech bulbs put out too much ultraviolet light and my plants are addapted to trying to live with it.
Maybe there isn't much infared light so when they get under other light sources the leaves aren't equiped to process it and the plant drops them to grow new leaves that can.
I'm just using ultraviolet as an exaple,it could be the other way around.
If I remember right plants only use mostly infared and ultraviolet light.
I've also tried cutting down the hours of light my plants recieve from 18 to 12 but if I cut it down more than 2 hours the plants start to loose their leaves again or start lookig sick.
It's like they are addicted to the light but the light is burning the plants out.
You've never seen a sick plant until you've seen these plants.Super shiney purple/Black to Yellow with a hint of green in a matter of hours.
I think I have the worlds Blackest Black Pearl and Black Scorpion Tongue ever grown.
I have some plants in a south facing window with these lights over them that I was turning on for a few hours aftr dark to give them 18 hours of light.They still turn purple but don't seem as addicted.
They just went into a holding mode when I stopped turning on the light at night when the ones that only get the V Tech lights started acting wierd.
It's got to be the lights causing the purple coloring on my plants because when I water and a drop lands on a leaf.when the water evaporates there is a spot where the water was thats not as dark purple.
The spot turns purple after an hour under the lights after the water dried up.Water must not let the spectrun of light causing the purple color through to the plant.
Possibly a reason to think it might be ultra violet causing the problem.Red can pass through about ten feet of clear water(acording to articles I've read about fishing lurecoloring).Whatever color causes the purple can't pass through a drop of water...
Anyone ever had this problem?
I've never heard of it before.
I thaught plants getting the wrong light usually got leggy and yellow and eventually died.
These guys turn Purple and so far haven't died but loose almost all their leaves.They just started doing this so I don't know ifthey will die or not yet.
Actually before they turn purple they look really strong.
I have a pequin thats got 5 or 6 sets of leaves on it thats only about 2 inches high,3 inches at most.
It's trying to grow branches too on such a small,Young plant.
It looks like a plant that would be twice as old as it is.
I took it out from under the lights before it got addicted I guess.
It seems like the plants I put somewhere else before this problem started are doing ok.
They weren't sprouted under these lights.
I'm nearing the end of my sprouting so I'm not rotating plants around from the window to the lights as much anymore and the last plants are always under the lights.
Before I had too many sprouts to fit under my lights and I rotated plants from place to place .
,so all got the artificial light every so often when they looked like they needed it.