Dark green algae growing on my plants - Page 2 - The Planted Tank Forum
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post #16 of 25 (permalink) Old 12-06-2003, 08:35 PM
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Please provide as much info as possible:

tank size, how long has the tank been up, filtration, type and amount of lighting, substrate, pH, KH, GH, CO2 level, plant types and how well-planted is the tank (a photo would be great), fish load

The accuracy of any advice you get will depend on you providing this information. So please let us know everything you can and then we'll be better able to help!

For instance, here's my 20xh info:
20gal, set up for 6 months, XP1 canister filter, 2-15W Aqua Rays 9325K ODNO 2x, Onyx/Flourite/gravel mix substrate, 7.6 pH, 6 deg. KH, 8 deg. GH, no CO2 injection, heavily planted with Crypts and Anubias, 14 small tetras, 2 Ancistrus, 1 small Chaetostoma thomasii, 3 oto cats, MTS, a few Nerite snails

Just provide what you can and don't worry about it if you can't tell us all this.

James
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post #17 of 25 (permalink) Old 12-07-2003, 06:14 AM Thread Starter
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I thought I replied just now but it seems that it was not 'recorded' in the forum. Info:
2 ft tank, re-setup 2 months, Ehiem Ecco canister, 2 x 20W NECFL20SS, 7 PH, 6.8 Kh, but GH below 2.3 as according to my Dennerle test strip, maybe it is not correct. CO2, Chiller at 25 deg, 8 guppies, 8 otos, previously less otos and guppies, but were added hoping to stop this aglae from growing. Also have 2 tetras. Attached is pic I took just now.
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post #18 of 25 (permalink) Old 12-07-2003, 06:16 AM Thread Starter
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Here is the pic, I do not know why it was attached earlier.
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post #19 of 25 (permalink) Old 12-07-2003, 06:19 AM Thread Starter
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Here is the pic, I do not know why it was attached earlier.
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post #20 of 25 (permalink) Old 12-07-2003, 06:20 AM Thread Starter
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I tried to attached the photo but seem to be unable. Pls. assist.
Thanks
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post #21 of 25 (permalink) Old 12-07-2003, 08:27 AM
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The image needs to be less than 75kB and 800x600 pixels or smaller.

I would not tear down a tank because of an algae infestation. Algae exist in many places, and even if you sterilize and redo everything there is no guarantee that they will not be right back.

Someone mentioned an increased light level, but there are many possible solutions. Basically any change in your tank might change the favorable conditions in which these specific algae grow. First off test NO3 and PO4 levels, they should be around 5-10ppm and 0.5-1ppm respectively. What are they now? Most likely there is some imbalance in your tank, this is what makes algae take over.
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post #22 of 25 (permalink) Old 12-07-2003, 09:03 AM Thread Starter
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Hi,
Let me see how I can test the NO3 and PO4. Let me try to attach the pic. I reduce it to 73K.
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post #23 of 25 (permalink) Old 12-07-2003, 10:04 AM Thread Starter
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Hi Wasserpest,
I was looking around but can't seem to find info on how to check NO3 and PO4. Any kit to recommend. I tested for Ammonia, and it was OK.
I started to reduce the light, ie shorter time on and off.. Also change 20% of water.
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post #24 of 25 (permalink) Old 12-07-2003, 11:03 AM
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http://www.tetra.de/default.cfm?uuid...&lang_id=2

Cape Town, South Africa.

Hi. I'm back.
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post #25 of 25 (permalink) Old 12-07-2003, 01:56 PM Thread Starter
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Hi Nordic,
Thanks for the link. Someone advise me to use 'Algae Remover' and tells me that when the water turns milky, add bacteria to replace those 'destroyed' by the 'algae remover'. Also recommended to use 'geo liquid' to remove this 'algae remover' after a few days. Anyone can give their views?
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