What is this algae? - The Planted Tank Forum
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post #1 of 9 (permalink) Old 01-18-2020, 04:50 PM Thread Starter
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What is this algae?

Well clearly itís a type of algae, but what type of algae is it and how can I annihilate it with extreme prejudice?

Itís olive green and slimy to the touch. It branches out from the main stem like a tree.


I just completely renovated my tank and this algae was there before. Now I have Co2 and dry fertilizers, so I can strangle this algae however possible.


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post #2 of 9 (permalink) Old 01-18-2020, 05:40 PM
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Staghorn algae

https://fishlab.com/staghorn-algae/

Also it peak photosynthesis response range is in the 525nm and 570nm range.
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post #3 of 9 (permalink) Old 01-18-2020, 06:52 PM
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This is one where Excel Flourish may actually do some good. Much as I hate seeing it pushed as "liquid carbon."
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post #4 of 9 (permalink) Old 01-19-2020, 03:40 PM Thread Starter
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This is one where Excel Flourish may actually do some good. Much as I hate seeing it pushed as "liquid carbon."


I have Crypts, I hear they hate excel, so I wonít be able to use it. Is there an algaecide that doesnít use gluc?


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post #5 of 9 (permalink) Old 01-19-2020, 03:55 PM
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I haven't had any problems with my crypts and glutaraldehyde, but that doesn't totally gurantee you won't, especially if they're a more delicate species. I've heard vallisneria is sensitive, and mine seemed to suffer when I was treating for ich with formaldehyde.
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post #6 of 9 (permalink) Old 01-19-2020, 06:44 PM
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I have Crypts, I hear they hate excel, so I wonít be able to use it. Is there an algaecide that doesnít use gluc?


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My crypts do well with the daily dose of Excell, they have melted before on the initial larger dose or when I have overdosed. But they always grow back. Sometimes in tanks with slow growing plants it can take awhile for the plants to grow enough to outcompete the algae, so someone or something will have to get in there on regular maintenance and manually remove the algae while focusing on healthy plants.


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post #7 of 9 (permalink) Old 01-19-2020, 09:05 PM
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You might also try hydrogen peroxide: turn off the filters and use a needleless syringe or pipette to target the algae with about 5ml. Leave the filters off for 15 minutes, then restart. it won't hurt the fish (they'll enjoy chasing the oxygen bubbles that form), but try it first on just one patch to see how the crypts react.
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post #8 of 9 (permalink) Old 01-20-2020, 03:58 AM Thread Starter
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You might also try hydrogen peroxide: turn off the filters and use a needleless syringe or pipette to target the algae with about 5ml. Leave the filters off for 15 minutes, then restart. it won't hurt the fish (they'll enjoy chasing the oxygen bubbles that form), but try it first on just one patch to see how the crypts react.


Iíll try this then, I took my anbias that was attached to small rock to target the algae with peroxide. Only the anubias and my sword have it. And the filter too of course.

Now I have some black beard or that short brush algae forming too.
My stem plants need to out compete the algae

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post #9 of 9 (permalink) Old 01-20-2020, 04:57 AM
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Ugh, Staghorn algae, my nemesis.

This type of algae shows up in my tank when the plants stop growing well, and the only way I've been able to kill it is to simply remove as much of it as possible manually at the same time as diagnosing what is the issue with my plants. Once I've corrected my plants and they start growing well again it turns white and disappears until another day.

Things I do when I start seeing this algae:
I look at my maintenance, have I been up on that for example: weekly 50% water changes and shaking out the sponges every time. If I don't do this it allows the algae to take hold.
Are my ferts still good, IE did my auto doser run out of anything.
Do my plants have any deficiencies that I can see?

I've tried everything in the books to kill this algae through chemicals like glut/excel and H2O2 and nothing has worked for me besides making sure my tank is healthy and manual removal.
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