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How long are you supposed to keep light on in tank?

This is a discussion on How long are you supposed to keep light on in tank? within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; --> its an aqueon filter too...

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How long are you supposed to keep light on in tank?
Old 03-28-2011, 01:24 PM   #11
 
its an aqueon filter too
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Old 03-28-2011, 01:35 PM   #12
 
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Originally Posted by ruby716 View Post
I don't have any live plants... you can go on the photo and video part of this site and see my fish and tank
First off, ruby716, I think this is the first thread of yours to which I have responded, so welcome to Tropical Fish Keeping.

Now to your light issue. I am assuming there are no live plants in this aquarium, in which case light is solely needed for your viewing pleasure. Fish do not need light, ordinary daylight in the room will suffice them, but viewing is nicer with a light. Restricting the light to your normal viewing time will solve this problem. It is, as someone suggested, preferable to have a timer so the light is consistent. Though this is of less significance without plants, still it is advisable. Fish like regularity too.

Algae is a plant, and like all plants it needs nutrients in the presence of light. Unlike higher plants, algae can use any light, even very little, to grow, and there will always be nutrients in a tank with fish. Live plants grab nutrients faster than algae can, provided they have adequate light to photosynthesize, which is why we say that having live plants can reduce or even prevent algae, at least from being troublesome. And "green water" is certainly troublesome.

Hope this helps your understanding of what's happening in that little eco-system.

Byron.
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Old 03-28-2011, 04:21 PM   #13
 
what is green water
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Old 03-28-2011, 04:29 PM   #14
 
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what is green water
Not sure why I mentioned green water, got a bit mixed up I guess, the initial issue was a green filter. Both are algae related.

Anyway, to answer what it is, it is unicellular algae so proliferous that the water is green, and can be so thick that it is impossible to see into the tank. Like pea soup, literally.
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Old 03-28-2011, 04:33 PM   #15
 
Thats nasty.
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Old 03-28-2011, 11:44 PM   #16
 
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Not sure why I mentioned green water, got a bit mixed up I guess, the initial issue was a green filter. Both are algae related.

Anyway, to answer what it is, it is unicellular algae so proliferous that the water is green, and can be so thick that it is impossible to see into the tank. Like pea soup, literally.


lol pea soup.. well my filter has greenish on it but my water is crystal clear... is it bad though that the filter is green since water is getting pushed through there back into the tank?
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Old 03-29-2011, 09:35 AM   #17
 
It should be okay
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Old 03-29-2011, 09:47 AM   #18
 
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yep, the green algae on items is actually a different species than the green water algae.
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