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 Lights on, Lights off!

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brambleforest
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PostSubject: Lights on, Lights off!   Sat Jun 14, 2014 4:13 pm

I've had some issues recently with brown diatom algae in my 55 community tank. One suggestion I've seen a few times online is to switch the lighting from, say 10 hours continuous to 5 hours on, 2 hours off, 5 hours on. According to some fairly reputable sources, this seems to disrupt strong algae growth. I decided why not give it a shot, since the on/off switch would be when I'm at work so I wouldn't notice it anyways.

Has anyone tried this particular method before?
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Fward
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PostSubject: Re: Lights on, Lights off!   Sat Jun 14, 2014 7:05 pm

Not me. But I believe Brown Algae comes first, then the good green comes after. Overfeeding may cause brown Algae to. Usualy appears in new tanks until you reach your balance.
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JohnnyAMH
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PostSubject: Re: Lights on, Lights off!   Sun Jun 15, 2014 12:29 am

I have had what we commonly call Brown Diatom Algae on occasion myself. I find it easy to control with regular cleaning and water changes.
Here's a link that might be helpful... Brown Diatom Algae
I hope this helps... Hello

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     ~~~ My Aquariums ~~~
55 gal. Planted Community Show Tank
(Swordtails, Neons, Kuhlii Loaches and Bristled Nose Plecos)
30 gal. Bare Bottom Adult Angelfish Tank
20 gal. Bare Bottom Angelfish Breeder Tank
10 gal. Bare Bottom  Angelfish Fry Tank
10 gal. Planted Show Tank
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Ron
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PostSubject: Re: Lights on, Lights off!   Sun Jun 15, 2014 7:05 pm

I have heard several members state they to do so many hours on and off with lights. I am certainly far from a scientist/biologist and such... but I can't help but think that is very stressful interrupting the fish's normal day cycle. Certainly in nature they sure don't receive 5 hours of sun then no sun and then 5 more hours and so on. Sure seems this would really mess with their rest cycles and etc. I agree with Fward about over feeding an issue as well as Johnny about water changes.

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Donald
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PostSubject: Re: Lights on, Lights off!   Sun Jun 15, 2014 7:30 pm

I've been running 4 hours on 10a-2p and another 4 hours on 5p-9p for some time. No obvious signs of stress. Corys and livebearers are breeding well. Algae growth is down.

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PostSubject: Re: Lights on, Lights off!   Sun Jun 15, 2014 10:27 pm

@Donald wrote:
I've been running 4 hours on 10a-2p and another 4 hours on 5p-9p for some time. No obvious signs of stress. Corys and livebearers are breeding well. Algae growth is down.

Is there any particular reason you chose to split the illuminated time instead of just delaying the start time or shorting the time to cut off? Question

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JohnnyAMH

     ~~~ My Aquariums ~~~
55 gal. Planted Community Show Tank
(Swordtails, Neons, Kuhlii Loaches and Bristled Nose Plecos)
30 gal. Bare Bottom Adult Angelfish Tank
20 gal. Bare Bottom Angelfish Breeder Tank
10 gal. Bare Bottom  Angelfish Fry Tank
10 gal. Planted Show Tank
(Guppies and Bristled Nose Plecos)


Last edited by JohnnyAMH on Mon Jun 16, 2014 6:56 pm; edited 1 time in total
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Donald
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PostSubject: Re: Lights on, Lights off!   Mon Jun 16, 2014 4:16 pm

@JohnnyAMH wrote:
@Donald wrote:
I've been running 4 hours on 10a-2p and another 4 hours on 5p-9p for some time. No obvious signs of stress. Corys and livebearers are breeding well. Algae growth is down.

Is there any particular reason you chose to split the illuminated time instead of just delaying the strat time or shorting the time to cut off? Question

8 total hours appears to give my plants adequate light so I don't want to shorten the time. I split the time because algae take longer to get photosynthesis going than plants (or so I've read). After 4 hours plants have been creating energy for a longer period of than algae basically out growing it. Hope that makes sense.

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JohnnyAMH
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PostSubject: Re: Lights on, Lights off!   Mon Jun 16, 2014 6:56 pm

@Donald wrote:
@JohnnyAMH wrote:
@Donald wrote:
I've been running 4 hours on 10a-2p and another 4 hours on 5p-9p for some time. No obvious signs of stress. Corys and livebearers are breeding well. Algae growth is down.

Is there any particular reason you chose to split the illuminated time instead of just delaying the start time or shorting the time to cut off? Question

8 total hours appears to give my plants adequate light so I don't want to shorten the time. I split the time because algae take longer to get photosynthesis going than plants (or so I've read). After 4 hours plants have been creating energy for a longer period of than algae basically out growing it. Hope that makes sense.

Interesting, thanks for your reply...  great

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     ~~~ My Aquariums ~~~
55 gal. Planted Community Show Tank
(Swordtails, Neons, Kuhlii Loaches and Bristled Nose Plecos)
30 gal. Bare Bottom Adult Angelfish Tank
20 gal. Bare Bottom Angelfish Breeder Tank
10 gal. Bare Bottom  Angelfish Fry Tank
10 gal. Planted Show Tank
(Guppies and Bristled Nose Plecos)
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Lights on, Lights off!

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