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post #1 of 9 (permalink) Old 06-01-2007, 10:38 AM Thread Starter
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Help picking deficiency..

Hi all,

hoping I can get some good guesses or better yet reasonably certain ideas on what may be deficient in my tank to produce the following.

I may not have the descriptions quite right so bear with me, and constructive criticism welcome The most obvious sympton is what I think would be described as interveinal chlorosis in my marble sword and anubius. the other less obvious sympton is some curling and edge browning on what I think is water sprite.

Please forgive the pic's, I'm dealing with two issues at the moment, a cloudy tank and poor photography skills





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post #2 of 9 (permalink) Old 06-01-2007, 11:03 AM
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how about some specs.
tank size?
How long plants have been in tank?
Bioload?
CO2? pressurized, diy?
lighting? (wpg and type)
ferts?
filtration?
recent changes to tank?


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post #3 of 9 (permalink) Old 06-01-2007, 02:59 PM
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post #4 of 9 (permalink) Old 06-01-2007, 11:47 PM Thread Starter
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Quote:
Originally Posted by gmccreedy View Post
how about some specs.
tank size?
How long plants have been in tank?
Bioload?
CO2? pressurized, diy?
lighting? (wpg and type)
ferts?
filtration?
recent changes to tank?
Tanks size is 6ft 550l (138g)
Plants have been in tank - 6 months for anubia & sword, 2 years for water sprite
Biolad is high - 14 well fed discus & about 30 tetras
Pressurised co2 with controller. ph is set at 6.3, KH is 2.4, about 36ppm. no drop checker
lighting is odno ~2.5 wpg
sump with wet/dry filter (I've put lids on etc & fiddled a lot to reduce turbulence etc to avoid co2 loss)
ferts...dry ferts added at w/c k2so4, mgso4, cacl2, trace mix. Starting to dose more often than just w/c now
w/c's 35% at least once per week
nitrates hover around 20ppm

changes errrr....probably too many to mention - replaced tubes from 6500k shoplights to plant tubes (mix of phillips aquarelle, sylvania aquastar, hagen aquaglo & sylvania grolux), upped co2 (been battling bba), increased ferts, recently dosed azoo bba killer (worked!), just finished blackout for BGA (also worked), removed some boring plants & added some red to tank (rotala macranda etc).

Obviously I already know it's a fert deficiency probably brought on by increased co2 and arguably better lighting. I have already started increasing ferts.

I would love to know which nutrient was lacking and not just be adding ferts blindly though.
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post #5 of 9 (permalink) Old 06-02-2007, 04:20 AM
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Based on my terrestrial gardening experience, that looks like classic iron deficiency. Google up "iron deficiency chlorosis" and you'll find pics of leaves that look identical to yours.

~ Linda ~

How many watts do I need to make my swimming pool a high light tank?
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post #6 of 9 (permalink) Old 06-02-2007, 05:08 AM
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agreed....definitely Fe deficiency.


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post #7 of 9 (permalink) Old 06-02-2007, 05:12 AM
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yep, i was saying in my head as i was scrolling down to type this, "iron deficiency!"

"Some of the worst things imaginable have been done with the best intentions." - Jurassic Park

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post #8 of 9 (permalink) Old 06-02-2007, 05:22 AM Thread Starter
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Thanks, appreciate the responses and I'll definitely up the trace dosage
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post #9 of 9 (permalink) Old 06-02-2007, 06:26 AM
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Quote:
Originally Posted by danepatrick View Post
yep, i was saying in my head as i was scrolling down to type this, "iron deficiency!"
Oh don't worry I beat you to it!


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