Too much fluorescent light?

[isurus79]

Originally Posted by DTEguy

Hi Steve,

Since Catts can take > 3000 fc, 1000 is still lower than

Ahhhh!!!! I read 10000k!!

I figured that was why the nodosa turned purple!! No, 1000fc should not make your nodosa get dark unless it was suddenly thrust under the lights. You can see the same effect from new growths on Cattleya. Under high light (or even moderate light, depending on the species) new growths will come out red or purple and then turn green once they "harden." This is another way to see if your green Catt is getting enough light, even though the adult growths are green and not red/purple.

Honestly, I would just move the plants farther away or closer, depending on what you are growing. Or take out a bulb. That works to lower light levels as well!