Boron deficiency, or calcium deficiency---or could it be nitrate excess? - Page 2 - Fertilizing - Aquatic Plant Central

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Old 07-02-2010, 04:33 AM   #11 (permalink)
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Default re: Boron deficiency, or calcium deficiency---or could it be nitrate excess?

That could be boron deficiency in your Ludwigia. You could try a pinch (1/24 teaspoon, or thereabouts ) of boric acid per 10 to 15 gallons and see if there is any improvement. Otherwise, you could just dose your tank with the recommended amount of a commercial micronutrient mixture including boron.
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Old 07-02-2010, 06:40 AM   #12 (permalink)
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Default re: Boron deficiency, or calcium deficiency---or could it be nitrate excess?

Where do you buy boric acid?
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Old 07-02-2010, 07:04 AM   #13 (permalink)
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Default re: Boron deficiency, or calcium deficiency---or could it be nitrate excess?

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Where do you buy boric acid?
Drug store.
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Old 07-02-2010, 03:10 PM   #14 (permalink)
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Default re: Boron deficiency, or calcium deficiency---or could it be nitrate excess?

Thanks, it definitely was boron, I'm getting normal growth now.
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Old 07-02-2010, 05:43 PM   #15 (permalink)
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Default re: Boron deficiency, or calcium deficiency---or could it be nitrate excess?

Wow! that was fast!
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Old 07-02-2010, 06:11 PM   #16 (permalink)
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Default re: Boron deficiency, or calcium deficiency---or could it be nitrate excess?

My ludwigia grows about an inch a day. For the past few weeks the leaves have been coming out twisted. This time they are oval like they should be.
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Old 07-03-2010, 04:18 AM   #17 (permalink)
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Default re: Boron deficiency, or calcium deficiency---or could it be nitrate excess?

Jefww, What did you add to cure the deficiency, and how soon did you see a recovery?
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Old 07-15-2010, 02:29 PM   #18 (permalink)
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Default re: Boron deficiency, or calcium deficiency---or could it be nitrate excess?

Within a few days 3-5 days, new growth came out untwisted. I just hyperdosed CSM+B. I'm getting the problem again now. I'm assuming that the heightened boron levels did the trick for awhile but when I returned to normal dosage i'm getting twisted leaves again.
I thought an excess of Ca was causing the deficiency and by adding a huge amount of B I could sap out the Ca. It didn't work. Recovered for awhile but didn't take up enough Ca.
Is orthoboric acid a good boron source?

EDIT: Threw hazard to the wind, dosed with 8ml of 35g of H3BO3 dissolved in 500ml of water to raise my Boron it about .8ppm. Will tell you how things turn out. Might be awhile though, just trimmed the terminal buds on my indicator ludwigia.

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Old 09-20-2010, 08:25 AM   #19 (permalink)
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Default re: Boron deficiency, or calcium deficiency---or could it be nitrate excess?

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Originally Posted by Jeffww View Post
Within a few days 3-5 days, new growth came out untwisted. I just hyperdosed CSM+B. I'm getting the problem again now. I'm assuming that the heightened boron levels did the trick for awhile but when I returned to normal dosage i'm getting twisted leaves again.
I thought an excess of Ca was causing the deficiency and by adding a huge amount of B I could sap out the Ca. It didn't work. Recovered for awhile but didn't take up enough Ca.
Is orthoboric acid a good boron source?

EDIT: Threw hazard to the wind, dosed with 8ml of 35g of H3BO3 dissolved in 500ml of water to raise my Boron it about .8ppm. Will tell you how things turn out. Might be awhile though, just trimmed the terminal buds on my indicator ludwigia.
I'm curious, how did your experiment come out? I have had the same problems for some time. and looking for the elusive answer?

Is it OK to ad the boric acid in with the micro mix (CSM+B). Is it possible the acid is reacting with something in the CSM over time when stored dry and reducing its effectiveness?
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Old 09-21-2010, 07:04 PM   #20 (permalink)
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Default re: Boron deficiency, or calcium deficiency---or could it be nitrate excess?

is this the boric acid that kills cock roaches???

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Drug store.
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