Need help not sure what is happening

[alfonso2002]

OldMac I ask you because you know aro This problem might not be specific to aro but you helped me before with a problem . these pics are not too good but here they are what is happening is that the large older leafs are turning yellow and have something that looks like rust any help? thanks

alfonso2002 Reviewed by alfonso2002 on 12-20-2010. Need help not sure what is happening -------------------------------------------------------------------------------- 1. Are you growing from seed or clones? clones 2. How old are your plants? 20 days 3. How tall are your plants? 16" 4. What type of hydro system are you using? aro sprayers 5. What brand/type of nutrients are you using?fox farm line 6. What is the Ph of your nutrient solution?5.8 7. What is the PPM/EC of your tap water? 0 8. What is the PPM/EC of your nutrient solution?900 Rating: 5

[alfonso2002]

here are better pic of the leaves PH 5.5 steady ppm 600 using fox farm nutes. Well there not that good

[drudown11]

5.5 is still a little low. This chart makes everything very clear.

[alfonso2002]

5.5 is still a little low. This chart makes everything very clear.

Drudown this is an aro setup

[oldmac]

Hey drudown11,

According to the chart 5.5ph hits everything, plus you would expect the Ph to raise from there, hoping for 5.8+ on runoff.

alfonso2002,

What you doing to your plants? It looks to be more like spider mite damage then nutrient problem. I'm not sure from just looking.

OM

[alfonso2002]

OldMac I dont know what to think about this have never had spider mites but will take a good look at them in the am I guess right about now LOL This is my first aro grow so having a few problems I ave the ppm at 600-700 Added a little cal mag and super thrive. PH5.5 it dont rise any . I was using fox farm grow big 3-2-6 just started Tiger Bloom (2-8-4). have never had this in soil before.

[k1ng87]

how much of the recommended nutes are you using...you should only be using about 1/4 strength.

[alfonso2002]

Thanks for your input K1ng87 I have the fox farm feeding schedule and it wants you to have 1100-1300 ppm I have it at 600-700ppm. I am thinking it was a cal mag dif. because I did and a dose of it and things are looking better. the leaves that were bad did not recover but no more are looking bad. thanks again

[oldmac]

Hey alfonso2002,

Sorry I did not respond to you earlier....I guess I lost the thread for awhile.
Or I've been lost in the eggnog for many days.

I'm not sure what's in Fox Farm nutes, so I'm not sure what to tell you about those additives. I use DutchMasters gold, so I don't need to add cal/mag since there is plenty in it. As for SuperThrive, save your money you don't need that stuff, the plant will make all the hormones and vitamins it needs.
As to TigerBloom or GrowBig, I really am clueless but I can tell you that in aero there is nothing between your roots and your nutrients. Whatever you use is going directly to the plant so things do happen faster (like over fert etc) and will show signs sooner.

I just checked the DM site and for that line of nutes they clearly say 5.5ph for aero, you should see what FF says for thier product. Also see what they say is in it and why they recommend the additives. It seems to me pretty much everything you need to grow a plant should be in the nutes.

Could you give me some idea of what aero system you are using?
Brand or DIY system, etc. Partly curiosity on my part but also for me to get a feeling of how your system works.

OM

[alfonso2002]

Hey alfonso2002,

Sorry I did not respond to you earlier....I guess I lost the thread for awhile.
Or I've been lost in the eggnog for many days.

I'm not sure what's in Fox Farm nutes, so I'm not sure what to tell you about those additives. I use DutchMasters gold, so I don't need to add cal/mag since there is plenty in it. As for SuperThrive, save your money you don't need that stuff, the plant will make all the hormones and vitamins it needs.
As to TigerBloom or GrowBig, I really am clueless but I can tell you that in aero there is nothing between your roots and your nutrients. Whatever you use is going directly to the plant so things do happen faster (like over fert etc) and will show signs sooner.

I just checked the DM site and for that line of nutes they clearly say 5.5ph for aero, you should see what FF says for thier product. Also see what they say is in it and why they recommend the additives. It seems to me pretty much everything you need to grow a plant should be in the nutes.

Could you give me some idea of what aero system you are using?
Brand or DIY system, etc. Partly curiosity on my part but also for me to get a feeling of how your system works.

OM

It is a do it yourself system 20X30 inch tub with a one spray bar with 6 360degree sprayers 10 gal in the res 260 GPH pond pump feeding the sprayers 2 air pucks and a pump to move water in the tub 10 3" net pots. P.S. I think I got things back on track right now but like you say things can go bad real quick. thanks for your intrest.