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.

Quote:

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Originally Posted by 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.

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

36" away.

Perhaps fertilizing too early?

Quote:

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Originally Posted by Frazzled

36" away.

Perhaps fertilizing too early?

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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: