Browning Plants? - The Planted Tank Forum
 
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post #1 of 14 (permalink) Old 07-30-2014, 01:02 PM Thread Starter
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Browning Plants?

Good morning, I recently planted my 55g tank and have a couple plants that are browning. I have 96 watts of t8 lighting over the tank, have root tabs in the substrate near the plants. Also occasionally dosing liquid macro/micro. My water parameters are great. I've attached a few photos, what typically causes this?
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post #2 of 14 (permalink) Old 07-30-2014, 01:17 PM
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Are your swords a new addition to the tank? Are they emersed grown? Have you let the plants dry out during a water change? Did they dry out at all? What are your nitrate levels? Do you dose ferts? If so which ones and how often? How long did it take for this damage to occurs - overnight or days?
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post #3 of 14 (permalink) Old 07-31-2014, 03:19 AM Thread Starter
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Quote:
Originally Posted by Zapins View Post
Are your swords a new addition to the tank? Are they emersed grown? Have you let the plants dry out during a water change? Did they dry out at all? What are your nitrate levels? Do you dose ferts? If so which ones and how often? How long did it take for this damage to occurs - overnight or days?
They are all only 12 days old. I just don't want to loose any! I do not know if they were emersed grown. Water changes are all fast, they wouldn't dry out. Only 1 of them is high enough to get out of the water anyway. The only things I "dose" currently is root tabs and macro/micro. The damage occurred over a few days. My nitrates are ~20ppm.

Thanks for your time!
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post #4 of 14 (permalink) Old 07-31-2014, 04:14 AM
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Can you post a full tank photo? I'd like to see the sword plants in particular. They might just be emersed grown and losing their emersed leaves.

Still doesn't explain the wisteria turning black though. Can you tank another pic of that plant only? A photo that shows more of the plant. Ideally I'd like to see which leaves are turning black, the older or newer ones.

The grass like plant at the end doesn't look aquatic, do you remember what it was called when you got it? Grass type plants like that don't do well when trimmed half way down the leaf like that. They tend to die back from the cut end.
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post #5 of 14 (permalink) Old 08-04-2014, 01:58 AM Thread Starter
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Here ya go. Thanks for the help.
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post #6 of 14 (permalink) Old 08-04-2014, 04:25 AM
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The plants do not look like they have any obvious deficiencies at this point in time. I think you do not have to worry about them unless they start dramatically looking bad.

See how they grow over the next week or two and let us know if there are any issues.

I think the few damaged wisteria and sword leaves are probably just isolated issues and are not nutrient deficiencies. Maybe damage or old leaves dying. The grass plant doesn't look aquatic to me and will probably die over time. You should get someone on the forum to ID it for you.

By the way is the plant in the last photo on the bottom left white or is that just an artifact of the photo? The new leaves look pale/white.

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post #7 of 14 (permalink) Old 08-04-2014, 04:52 AM
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The plant in the bottom left looks like Mayaca fluviatilis and when iron isn't sufficient it will turn a pale yellow or even white.

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post #8 of 14 (permalink) Old 08-04-2014, 05:29 AM
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The plant in the bottom left looks like Mayaca fluviatilis and when iron isn't sufficient it will turn a pale yellow or even white.
Yes, exactly. That is why we need to know if the plant is white in the photo (overexposed picture) or white in person (iron deficiency).
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post #9 of 14 (permalink) Old 08-04-2014, 07:20 AM Thread Starter
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I will have to take another look at the tank and take note of the color.
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post #10 of 14 (permalink) Old 08-04-2014, 01:11 PM Thread Starter
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Yes that plant in question appears to be whitening.

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post #11 of 14 (permalink) Old 08-04-2014, 09:59 PM
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Macaya is a good indicator for iron deficiency, it will develop symptoms weeks before other plants will. If the new leaves are going white then you should add an iron fertilizer to prevent other plants developing iron deficiency.

You can confirm that the issue is iron deficiency if the macaya starts growing green leaves on top of the currently white ones. If the newest leaves are green then it means there was an iron deficiency in the tank and you caught it before it started affecting your other plants. The currently white leaves will probably not turn green again.
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post #12 of 14 (permalink) Old 08-04-2014, 10:49 PM Thread Starter
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This is the specs of what I am currently dosing in addition to root tabs. I was going a little light on the liquid, but it appears I will have to bump it up. Any recommendations on what to dose? I'm rather new to this.

Soluble Potash K2O..................................1%
Calcium .................................................. .0.2%
Magnesium (Mg)........................................5%
0.03% Water Soluble Magnesium (Mg)
Sulfur (S)..............................................0 .036%
0.036% Combined Sulfur (S)
Boron (B)............................................0.0 006%
Iron (Fe).............................................. ....0.12%
0.12% Chelated Iron (Fe)
Manganese (Mn)............................0.00008%
0.00008% Chelated Manganese (Mn)
Molybdenum (Mo).............................0.0035%
Zinc (Zn)...........................................0.0 0012%
0.00012% Chelated Zinc (Zn)
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post #13 of 14 (permalink) Old 08-05-2014, 02:58 PM
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What is the product name that you posted above?
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post #14 of 14 (permalink) Old 08-05-2014, 04:50 PM Thread Starter
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Aqueon Freshwater Aquarium Plant Food

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