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PostPosted: Jun 28th, '17, 23:38 
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Hi All,
This is my first tank setup in UAE and my first experience in UAE summer
UAE temperature ( min 37 degree day time ) to 42 -44 degree.
I have noticed following happening

    Coriander already dead and disappeared from the grow bed
    Brinjal, loses its leaves and seems stunned ( image attached)
    Basil, the side of leaves gets deformed (image attached)
    Ginger the leaves again here shows not growing (image attached)
    Other plants leaves not green enough( image attached)


First I thought it is because of iron deficiency and added aquarium iron supplement for plants
But the issue is still there and getting worse.
Like to know from experienced gurus that is this behavior is because of iron deficiency or because of high temperature ( The grow bed is kept under shade, and only shade no enclosed surrounding ) but high temperature is there out side
Requesting to please check the image and advice
Thanks
Joseph John


Attachments:
File comment: Ginger leaves also see the sides
GingerLeaves.jpeg
GingerLeaves.jpeg [ 62.74 KiB | Viewed 3735 times ]
File comment: See the leaves, not green enough
NotEnoughGreen.jpeg
NotEnoughGreen.jpeg [ 49.08 KiB | Viewed 3735 times ]
File comment: Brinjal leaves has drop down, and growth look stunned
Brinjal.jpeg
Brinjal.jpeg [ 62.36 KiB | Viewed 3735 times ]
File comment: See the leaves sides
BasilLeaves.jpeg
BasilLeaves.jpeg [ 42.47 KiB | Viewed 3735 times ]

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PostPosted: Jun 29th, '17, 18:25 
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It could be either. Can you tell me more about your iron addition? I think some of these are iron deficiency and I think it's possible that the iron added wasn't in the right form to be available to the plants. If I know what you added (what form of iron is in the supplement), whether you sprayed or added to the system water, and the pH of your system water, I'll be able to tell you more.


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PostPosted: Jun 29th, '17, 22:32 
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Thanks for the reply.
This Sunday I am visiting the setup, will get the info and mail back with pictures
Thanks

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PostPosted: Jun 29th, '17, 23:18 
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Forgot to mention that those leaf edges that are dying look like a potassium deficiency which is also common early on. Usually you just see it in the lower leaves but I'm still pretty certain that's what it is.


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PostPosted: Jul 2nd, '17, 19:15 
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Today visited the site, just came back. We are using ground water
the readings are
"
Quote:
GH(Alkaninity) 180
KH(Hardness) 240
pH 8
NO2 .5
NO3 40


Is this reading fine?.

Like to give this information, my fish are perfectly healthy, only plants have problems

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PostPosted: Jul 2nd, '17, 23:41 
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Some of the plants definitely look to be suffering from Iron chlorosis. At a pH of 8.0 the only Iron supplement that will alleviate this issue is EDDHA chelated Iron. Add 1/2 a level teaspoon of EDDHA chelated Iron per 1000L.

I believe the bigger issue is temperature. The type of gravel you are using (Basalt/Granite) is not ideal in extremely warm environments, it absorbs and transfers heat to your water. The dry layer of the gravel, the 40-50mm at the surface of the bed, gets too warm during the heat of the day and inhibits plant growth.

Expanded clay would be a much better option in your environment. Here in Perth in Summer it gets to 40C+ and there can be a difference in water temp, in the favour of expanded clay, of as much as 2C in the heat of the day in backyard sized systems. The surface of the expanded clay is also much, much cooler than that of Basalt gravel, enabling seedling development and plant growth where the Basalt doesn't.

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PostPosted: Jul 3rd, '17, 07:30 
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Most plants require at least a few hours of sun light the more the better perhaps you could rig up a convex reflector high up above the GB.
It could be an aluminium coated board, mirror (glass free), a sheet of aluminium or stainless or even gloss white coated material. The convex shape will spread the light while minimizing the size of the panel.

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PostPosted: Jul 3rd, '17, 10:23 
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If you can't find EDDHA iron chelate then spraying on some other form of iron will help since this bypasses the problem of iron lockout in the system water. You'll need repeat applications every week or two until the deficiency goes away if you do it this way.

I'd prefer not to see any nitrites but it's still early on for your system so it's not that unusual. If you have a reading like this it's probably a good idea to hold off feeding until it falls back to zero. Chloride helps protect the fish against nitrite poisoning so if you add 1 part per thousand of NaCl (sodium chloride, table salt here in the US) to the water that will help. You want the kind that doesn't have anti-caking agents and that is not iodized.


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PostPosted: Jul 3rd, '17, 11:48 
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Thanks
My sincere thanks to all of you who had given advice, I have learned my lessons now for next setup. I will
Use clay balls
one again THANKS to all

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