Green Hair Algae in mature tank - dumb question - The Planted Tank Forum
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post #1 of 8 (permalink) Old 10-14-2020, 10:06 PM Thread Starter
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Green Hair Algae in mature tank - dumb question

Hi - I tried searching this forum before posting this kinda dumb question.

I've never had an algae issue of any kind in this 10 gallon planted betta tank. Now I've got green hair.

The only thing I've done differently is I haven't ferlitized it in a while (Easy Green ran out, just reordered).

I noticed the circulation isn't that great so I just increased it. I barely get nitrate readings so I don't change the water that often, but did a 20% yesterday even though params were normal. I've removed as much manually as I can.

I have a clip on Finnex light that I just cut back to 7 hrs (from 10).

I read Amano Shrimp are helpful, and will try and find a couple. I also read that "Easy Carbon" is supposed to be useful?

Is there anything else I can do to deal with the algae?

Thanks so much for any help!


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post #2 of 8 (permalink) Old 10-15-2020, 03:10 AM
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Green Hair Algae in mature tank - dumb question

Here is what I would recommend. Get back to your dosing routine, restore the photoperiod that was set, more frequent water changes and things should go back to normal.

Getting some Amano shrimp (bigger ones) should help, the betta will leave them alone. Amanos are fun to watch. I like them when they graze along the hardscape, substrate and plants. Need to be be more cautious with water changes when having invertebrates in the tank. Water conditioners for one and maintaining temperature is the other that has helped me.

I would stay away from any chemical treatment for now for the green hair algae problem. Looking at your tanks pic I was not able to spot any as well. So I assume the problem is not severe. May be itís just starting.


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post #3 of 8 (permalink) Old 10-15-2020, 03:08 PM Thread Starter
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Thanks for your Helpful reply!

Ferts are on the way, and I'll follow your suggestions.

I've been wanting to get a couple of Amano for a long time. My LFS doesn't have them. There's a Petco and even PetSmart nearby; I could try them.

Time flies - the problem happened in recent months - after that pic. I removed a lot of it manually. It was long and slimy. I can still see it in places (like in front of the heater) but it doesn't show up well on photos.

Lesson learned if things are going well, keep doing what you're doing.

Thanks again

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post #4 of 8 (permalink) Old 10-15-2020, 04:44 PM Thread Starter
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Here's a close up from today. If you *zoom* in you can see the thread like hair algae all over the place.

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post #5 of 8 (permalink) Old 10-16-2020, 12:00 AM
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eeek, yeah, the best thing is manual removal to start off with.

Then just continue with the water changes, equipment maintenance such as cleaning filters/pump and keep the lights low/less time until it clears up. Algae eaters are great but if you didn't have an issue with algae before and you can get it stabilized then they might not be needed
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post #6 of 8 (permalink) Old 10-16-2020, 04:55 PM
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Is it long and silky, then it is not hair algae but green thread algae or spirogyra. Amano will eat soft hair algae, but not tough spirogyra. You have to remove by hand which comes off easily in strands, though it may entangle some plants.
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post #7 of 8 (permalink) Old 10-20-2020, 08:18 PM Thread Starter
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I didn't see these new msgs till just now.

I think you're right it sounds more like spirogyra.

What's funny is I have a vague memory of a band called Spirogyra Lol who knew they were named after algae?!

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post #8 of 8 (permalink) Old 10-20-2020, 10:44 PM Thread Starter
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I got as much out as can be manually removed. I'm wondering if maybe it's not that big a deal? Maybe I jumped the gun assuming something was wrong? Algae is natural and common in nature, right?

Anyway, I ordered a couple of snails and some shrimp. The shrimp are big orange ones (sorry forget the name). Used to have some "pest" snails but something happened I don't see them anymore.

I don't "vacuum" the Aquasoil substrate and there's a pretty good mulm build up.

I dosed with Easy Green and trimmed any unhealthy leaves I could find. I also added some hygrophilia and ordered more dwarf sag. In this tank either it dies or does really well. Go figure

Hopefully all of this will help balance the tank - I'm not sure why it took a year to see algae, but I'm going to try and focus on better management.
Due to "events" since summer I haven't paid as much attention to the tank as I should.

What's odd is for the longest time I don't get any Nitrate readings (API test kit). I usually base water changes on Nitrate levels, so I haven't changed the water in a long time (just topping off). The fish have never been sick (ever) so I don't mess with the tank.

I don't mess with the filter either. It's a HOB stuffed with blue foam, presumably packed with BB bcs post cycling I've never detected ammonia. I should probably take it apart once in a while.

Sorry for the rambling...I'm giving away some fry...put an ad on neighborhood app - been slammed with bizzare responses. It's been tiring. Today I took down the ad and will take them to LFS.

Thanks for the help with the algae - yet another "fishy" thing to learn about!



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