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Old 05-26-2007, 10:29 PM   #1
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Light Question

My ballast died and I ordered a new one. The problem is it won't get to me until next Friday.

Will I have any problems with just room lighting for the week?

I have a 20W flourescent hood from another tank I can use, if it would make a difference.
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Old 05-26-2007, 11:11 PM   #2
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I would use as much light as you can until then.
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Old 05-27-2007, 12:32 AM   #3
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It really depends on the size of the tank, how much light you had over it, and the plants that you were keeping in it. If that 20 watt light is at least half of what you were running before and at least low light, then it should be fine to use in the meantime combined with reduced fertilization. If you've been having any problems with algae in the tank, you could use it as an excuse for a blackout while you wait for the new ballast.
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Old 05-27-2007, 07:18 AM   #4
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It's a 20 gallon. I had 65W and some high light plants like Glosso and R. Macrandra,R. Wallichii, Ludwigia Cuba, Baby Tears...And I have been having problems with Algae.

If I lower my ferts, how much lower? I dose Potassium (25ppm) 3x a week and Flourish (10mL) 3x a week) w/ PWC's 1x a week

What about Co2? I have a pressurized setup w/ a controller aimed for 35-40ppm

Should I do my PWC today?
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Old 05-27-2007, 08:54 AM   #5
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If you put the 20 watt light on the aquarium, I'd reduce dosing to once a week and you could leave the CO2 on. If you decide to do a blackout then you'd cease dosing and turn off the CO2, with a water change right before and after the blackout.
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Old 05-27-2007, 11:20 AM   #6
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How long can high light plants go w/o light?
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Old 05-27-2007, 03:45 PM   #7
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That really depends on how healthly the plants are to start with and the specific variety of plant.
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Old 05-27-2007, 04:19 PM   #8
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Quote:
Originally Posted by Purrbox
That really depends on how healthly the plants are to start with and the specific variety of plant.
Wallichii, Ambulia, lidwigia Cuba, vals Americana, lidwigia repens, baby tears, anubias nana, R. Macrandra, red lotus, glosso

All in great condition
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Old 05-27-2007, 08:50 PM   #9
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I would guess that most would make through a 3-5 day blackout with minimal fuss. The more difficult species are more likely to suffer damage the longer it goes.
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Old 05-29-2007, 05:53 PM   #10
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When you do a black out, is that just no lights or do you need to go as far as wrapping in a black plastic bag?
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Old 05-29-2007, 07:54 PM   #11
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A blackout means wrapping the tank so that absolutely no light gets in. For more detailed information read Treatment 1 under BGA.
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Old 05-29-2007, 08:02 PM   #12
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Looks like I have thread algae and BBA...and thus, don't need to blackout the tank.
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