Iron question - The Planted Tank Forum
 
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post #1 of 4 (permalink) Old 06-02-2014, 01:26 AM Thread Starter
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Iron question

So I have a 25 gallon moderately stocked and moderately planted tank. I keep nitrates at 20ppm phosphates at 1ppm. I dose flourish comp twice weekly at the recommended dose. Lighting is dual t5ho 31 watts per bulb. Tank is co2 injected and maintained at roughly 30ppm with a drop checker. Plants are growing like crazy and things are going well considering this is my first planted tank. I have noticed that there is some interveinal chlorosis on some of the younger leaves. I do use equilibrium at water changes because we have really soft water with almost no calcium or magnesium. Is this an iron deficiency or something else? Manganese deficiency? I can't quite pinpoint which nutrient I'm short on. Any suggestions?
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post #2 of 4 (permalink) Old 06-02-2014, 04:40 AM
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Since excess nutrients cause no adverse effects, you can dose per the tables in https://www.plantedtank.net/forums/sh...ad.php?t=21944 and you won't need to be concerned about nutrient deficiencies. You will need to do big water changes regularly, like 50% of the water once a week. This prevents any excess nutrients from building up in the water and finally getting high enough to cause problems.

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post #3 of 4 (permalink) Old 06-02-2014, 11:01 AM Thread Starter
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Thanks Hoppy I will give that a try and see what happens.
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post #4 of 4 (permalink) Old 06-02-2014, 12:08 PM
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Photos of the problem?

Sounds like iron deficiency. It is quite common in aquatic plants. Look through the various iron deficient plants here: www.DeficiencyFinder.com

Here is a summary on Mn deficiency/toxicity:https://www.plantedtank.net/forums/sh...98&postcount=7

While EI guidelines are built around acceptable nutrient ranges adding too many micros can cause toxicities while more macros generally cause no problems at all even at very high levels.
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