rotten eggs

Lights: 2x 600w hps air cooled. Lights 10" from tallest plant.

Central a/c and window unit a/c w/dehumidifier.

Using co2 releasing 5lbs in hour intervals 3x a day.

Room stays between 76 and 70 at waist level and between 72 and 78 under the lights. Humidity stays around 55

Medium: Promix BX with Premium Biodynamic compost added.

Nutes: Pure Vida Bloom Phase 1/3 strength. 2nd nute feeding after going 12/12 was Fri. I'm feeding from the bottom with every third watering coming from the top. I only water when the catch trays are completely dry.

2nd week of 12/12

When I checked on my plants this morning 4 plants were still sitting in their water. The water was at different levels in each tray. (The other 18 plants were as they should be trays dry). The water in the trays had the smell of rotten eggs. Two plants leaves are folding and curling under, with some small tanning in the middle of the leaves.

What is this, and what is the solution? I took all four plants out of their trays let them drain good. Didn't want to flush (since they stopped drinking) until I diagnosed the problem. Started to repot right away but didn't want to stress them any more than needed. Ph of rotten egg water was 6.6-6.7 in all four. My last watering was from the Top.

Any advice or help is greatly appreciated.

From what you've stated in you're post I'd say you've probably a victim of a ph fluctuation which has stopped your girls from being able absorb nutrients. I've have recently experienced this also. I'd suggest flushing immediately with clean water with a properly balanced ph to clear your soil and plant of the mistake. This should help, get them back on the nutes after that and they should be fine.

Check the picture of ph problem on this link to see if it matches up.

https://www.rollitup.org/view.php?pg=faq&cmd=article&id=588

SpiritualHealer said:

From what you've stated in you're post I'd say you've probably a victim of a ph fluctuation which has stopped your girls from being able absorb nutrients. I've have recently experienced this also. I'd suggest flushing immediately with clean water with a properly balanced ph to clear your soil and plant of the mistake. This should help, get them back on the nutes after that and they should be fine.

Check the picture of ph problem on this link to see if it matches up.

https://www.rollitup.org/view.php?pg=faq&cmd=article&id=588

Click to expand...

Yeah it is similar but not that bad, maybe I caught it early the plants other than the smell and not taking water are other wise looking pretty good. And as I stated my water run off ph is pretty consistant with what I pour through (within a couple hundreths on a digi meter) the top. Thank you for the link, and suggestion. I'm going back over to the house in a few and take some pics if it has worsened.