Green water in 66 gallon - The Planted Tank Forum
 
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post #1 of 11 (permalink) Old 12-12-2010, 09:30 PM Thread Starter
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Green water in 66 gallon

Well I have got Green water going on pretty bad now.

Originally I had 4 48" t10 bulbs resting on top of the tank for my lighting. Since then I have removed 2 of the bulbs.

Is there anything else I Should be doing to try and get rid of this? Going to do a 50% water change later today, even though it does not do to much.
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post #2 of 11 (permalink) Old 12-12-2010, 10:10 PM
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skip the water change...all you can really do is
1. go chemical route (effective)
2. uv filter (effective)
3. micron filter (effective)
4. blackout (hit and miss for me)
5. stop ferts and wait it out (super effective)

5 would be the "best" option...though not the fastest
you can speed it up tho by putting the bulbs back in

...basically, you speed up the photosynthesis of the algae and it eats all of its nutrient source...then it all dies off due to starvation...one big water change afterwards to remove the decaying matter

doing nothing...is the hardest thing to do

it is IMPOSSIBLE to find 1 person who regrets going pressurized

if you do it right, you can spend a lot of money in this hobby...of course, if you do it wrong - you'll spend A LOT more
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post #3 of 11 (permalink) Old 12-12-2010, 10:51 PM Thread Starter
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alright so full lighting until it starts to lose the green color. then wc? will stop ferting and will feed every 4 days.
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post #4 of 11 (permalink) Old 12-13-2010, 12:16 AM
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If the original poster had a co2 system running, would it be advisible to turn it off in this situation?
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post #5 of 11 (permalink) Old 12-13-2010, 03:57 AM
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A 3 day blackout, done correctly, will kill the algae. Just stopping all fertilizing will have no effect on the algae at all. Algae need such minute amounts of nutrients that there are always plenty in any aquarium for algae to thrive.

Algae can be viewed as nature's way of suggesting that you use less light. Follow that suggestion and algae become a much lesser problem, one that you have plenty of time to address.

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post #6 of 11 (permalink) Old 12-13-2010, 04:33 AM Thread Starter
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can you explain how to do a 3 day blackout correctly, and also what I should do about my lighting? plants are growing great, dont want to lose any of them.
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post #7 of 11 (permalink) Old 12-13-2010, 04:43 AM
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For me I tried a black out but it just didn't work.

So I tried daphnia and the amazing thing about them is that they can clear up green water or bacteria blooms. The bad thing is that you have to turn off your filter. Of if you have fish, they will eat them all.

I just dump a bunch in, turn off the filter and since I don't have fish, its fine. Then I either turn on the filter which will waste all the new daphnia so I throw in fish from my other tanks. Then return them when they eat all the daphnia.

But I found using a UV sterilizer is the most simplest way

I'm not a doctor in real life but I play one on this forum


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post #8 of 11 (permalink) Old 12-13-2010, 12:43 PM
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I'm on the downhill run of battling green water in my new tank. Nothing was really helping until I tried the suggestion of longer photo periods. I was leaving the lights on for 12 and 14 hours. After reading that and the first day after the longer photo period was FAR worse. But by the second and third day I was seeing significant clearing. Its nearly over now.

"Aquarists are a brave lot. We mix water and electricity every day."
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post #9 of 11 (permalink) Old 12-13-2010, 01:00 PM
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You could also try the willow branch method. I know some people swear by it.
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post #10 of 11 (permalink) Old 12-13-2010, 02:41 PM
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Get a UV sterilizer. It works!
Even took out all the tannings in the water caused by my driftwood.

You know what dog food tastes like? Do you? It tastes just like it smells... delicious.
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post #11 of 11 (permalink) Old 12-13-2010, 09:03 PM Thread Starter
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Okay I have covered all sides of the tank with blankets, leaving only the top of the tank open to light. There is 0 sunlight in the room, and im going to try and keep the room lights off as much as possible. I dose with excel but I am also going to hold of on that for awhile and see how things go.

Sound like a plan?

Also, my lighting seems to be the problem here. Everything else seems in check. I dont want to spend much money on changing out the lighting system. So what I have now is

4 48" t10 bulbs over the tank
2 were labeled as being used for aquarium use
2 are daylight bulbs.

The light fixtures basically have to rest on top of the tank, as my landlord does not allow us to drill things into the roof. I have considered building a hood, but the tank is a bowfront and I dont have allot of spare time to build one. So how can I work around this?
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