Problems on 4x8 flood table

[Frazzled]

Hi,
When I put small rooted (4" rockwool) plants on a 4x 8 flood table they turn a dark green sickly color. The roots grow good but not the tops. They wilt and look unhappy. After 2 weeks they come around.

Using GH at 500ppm w/2x1000 mh.

ANy suggestions on the best way to transition from 400w to the table?


Thanks in advance.

Frazzled Reviewed by Frazzled on 11-23-2008. Problems on 4x8 flood table Hi, When I put small rooted (4" rockwool) plants on a 4x 8 flood table they turn a dark green sickly color. The roots grow good but not the tops. They wilt and look unhappy. After 2 weeks they come around. Using GH at 500ppm w/2x1000 mh. ANy suggestions on the best way to transition from 400w to the table? Thanks in advance. Rating: 5

[JohnnyWisdom]

Hi,
When I put small rooted (4" rockwool) plants on a 4x 8 flood table they turn a dark green sickly color. The roots grow good but not the tops. They wilt and look unhappy. After 2 weeks they come around.

Using GH at 500ppm w/2x1000 mh.

ANy suggestions on the best way to transition from 400w to the table?


Thanks in advance.

Maybe too much light? How far away are the lights?

[Frazzled]

36" away.

Perhaps fertilizing too early?

[JohnnyWisdom]

36" away.

Perhaps fertilizing too early?

36" is pretty good ... if you can raise them up a little more (as long as they're not stretching) and make sure you're only using 1/4 strength nutes ... after a week or so they'll like it a little more rough :thumbsup: