Please Help. Weird Bumps?! Is this Mg Deficiency, Heat, Ph, or Humidity problem?

learning05

Active Member
Hi All,

This is my second grow using the same set up. I had decent results with my first grow with Stealth Hydro 6-gal bucket and dual spectrum light kit (harvested to early :sad:). For this grow I upgraded the kit and now I got:

- 2 air stones and pumps
- 3 Cfls= 1 85w Sunlite Daylight 6500K, 2 6500K 75W EQ. (I got a 85w Red Spectrum and (2) 2700K 100W EQ. which I plan to use for the flower stage).
- Light cycle is at a 18/6.
- Temperature: near the plants are 70-85 f during the light on and lowest it goes on the off cycle is 65. There is a big difference when I place the thermometer close to plants under the light and above the lights. Under the temp is usually 80-85 f.
- Humidity: Its winter time so I am having a problem keeping the humidity up. I am running a humidifier 24/7 but when I keep the meter near the plants its RH is 16-20%. When I hang the humidifier higher then the lights the RH is 30-40%. With the lights off it gets to a max of 57% (I close my closet door at 12pm and block all light for the dark 6hrs).
PH: 5.3-6.7
PPM: 1002-857 (I check it in accordance to the water level. If the plants drink more water and use less nutes I add plain water. If the PPMS and Water drop I top it off with 1/4 the serving of micro and grow.)
Nutes: Stealth Hyrdo's Nute Mirco and Grow

No CO2 supplementation as yet but I am planning on doing the active yeast and sugar method. Just learning how that works.

What I have tried:
- I moved my one 6' inline fan to a window so that it could pull cold air in from the outside and help keep the temp near the plant cooler.

The 3 plants are in veg for about 2.3 weeks now. I am not sure whats wrong. 1 of the plants seem healthy but the other two don't seem to being to well.

Pictures: bumps.jpg mg def.jpgall 3 again.jpgall 3.jpg

The one on the far left has bumps I have never seen bore. Kind of looks like water bubbles. Can someone help me figure this out? What is it? What needs to be done? I have tried looking at the deficiency stickies but none look like that.

The 2nd pic looks like there is a Mg deficiency on the lower leaves but the top doesn't seem to display it. Is it really Mg? Am I off in the diagnosis?

I really appreciate anyone who can help. From what I have read in this forum their are some very very experienced growers.

Any recommendations for the humidity?

Thank you!!! Hope to hear from someone.
 

learning05

Active Member
Ok the plant grew a bit but the one on the left is displaying odd growth and the patterns on the leaves look odd as well. They really look like bumps underneath the surface of the plant. Is that natural? Also what could be causing the plant tips to curl downward?

Here is a update of the left plant: IMG_0444.jpgIMG_0445.jpg
 

Fresh 2 De@th

Well-Known Member
definitely a mag issue. definitely get your rh up between 50-60% and keep it there. i believe once you fix that all your problems should go away.
 

learning05

Active Member
thanks. I have a 6 gal res so I added a little less then 1/4 of a tsp of mg from the cvs bath salt. Will that be ok? I figure its better to slowly increase the mg content just so I don't over do it. Also having a hard time keeping the heat down and RH up. I have to vent cold air in so that the temp doesn't raise above 81 but that lowers my RH by 10-15%, I have managed to get a RH of 25% with a temp of 80 f. At the 6 hrs of darkness the RH is usually around 50-65% since the door is closed. Any suggestions on what I should do there?
 
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