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Discussion Starter · #1 ·
Hello,
Something strange with my Rotala Sp Green - close attention to the leaves - its like Chlorosis but of what - Not Iron im sure cause am add daily



Fe 0,3
Mn 0,029
B 0,0180
Cu 0,0014
Zn 0,0060
Mo 0,0007
Light 216 wt
CO2 3 ppm - 9 hours
NPK - dayly
Tank 226 Liters

Maybe its Boron overdose?

Any comments
 

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What does 'CO2 3 ppm - 9 hours' mean? … and what is your GH, KH, Ca, Mg and how much NO3, PO4 and Mg do you dose daily? What chemicals do you use to do so?
 

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Discussion Starter · #3 ·
What does 'CO2 3 ppm - 9 hours' mean? … and what is your GH, KH, Ca, Mg and how much NO3, PO4 and Mg do you dose daily? What chemicals do you use to do so?
Co2 - means 3 bobles per second 9 hours at day, 1 hour before light in and its off 1 hour before lights off. So my pH 6,7 Kh 5 GH 18-20. 60-70% weekly water change - simple water from water tap Ca 60 Mg 16 -
NO3 - 3,2 mg/l dayly
PO4 - 0.24 mg/l Dayly
Mg - 0

NPK and Micro is DIY
 

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Your GH is 18 - 20 dGH, Ca 60 ppm, Mg 16 ppm, you posted. This doesn't look right because,

Ca 60 ppm = 8.5 dGH
Mg 16 ppm = 3.5 dGH
---------------------
Total GH = 12 dGH, not 18 to 20

What chemicals do you use to dose NPK?
How much K do you dose daily?
 

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Discussion Starter · #5 ·
Your GH is 18 - 20 dGH, Ca 60 ppm, Mg 16 ppm, you posted. This doesn't look right because,

Ca 60 ppm = 8.5 dGH
Mg 16 ppm = 3.5 dGH
---------------------
Total GH = 12 dGH, not 18 to 20

What chemicals do you use to dose NPK?
How much K do you dose daily?
My GH is really 20 :-( measured by TDS meter
NPK made from KNO3 и К2PO4
K dosed daily 2.44 but during WC I add K to maintain concentration 20ppm
 

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My GH is really 20 measured by TDS meter
A TDS meter is a conductivity meter that gives the results in ppm of CaCO3. That does not mean that you have that much CaCO3. You could take distilled water, put NaCl (sodium chloride) in it, The Na+ and Cl- ions would increase the conductivity, and the TDS meter would give the results as ppm CaCO3. It is saying that this amount of CaCO3, if dissolved, would give you the amount of conductivity you are getting with your NaCl solution.
 

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Hi borman,

It appears to be interveinal chlorosis. It is typically caused by a manganese deficiency. Here is what it looks like in a maple leaf: http://images.google.com/imgres?imgurl=http://www.plantpath.iastate.edu/pdc/files/Image/chlorotic_red_%2520mapl.jpg&imgrefurl=http://www.plantpath.iastate.edu/pdc/node/21&h=540&w=590&sz=249&hl=en&start=2&usg=__7hS9kXKL87FNSkkHKxkQXwPwqts=&tbnid=fMXY2xnenwojyM:&tbnh=124&tbnw=135&prev=/images%3Fq%3DInterveinal%2Bchlorosis%26gbv%3D2%26hl%3Den%26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:eek:fficial%26sa%3DG

Here is a flow chart that may help you diagnose the problem (as well as others), it also seems to point to magnesium deficiency.
http://www.finostrom.com.gr/images/aqua/fertilizers/map.htm

I would probably dose with Mg2SO4 (Epsom Salts). ½ teaspoon (2.7 grams) of MgSO4 will add 7.03 ppm of Magnesium to 10 gallons of water. The suggested Mg levels are 5-10 ppm.

Hope this helps!
 
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