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Old 04-22-2013, 10:13 AM   #1 
Jexx
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Lighting: watts per gallon

I have three 5 gallon tanks (well 2 of them are 5.5..) one 5.5 has a 10w 50/50 fluorescent bulb (bright white daylight and blue) so it is 2 w/gallon. The 5 gallon has the same so again 2 w/gallon and the last 5.5 has a full spectrum 14 w t8 so 3w/g. What would these lighting situations be considered? Low light, Moderate light or good light? what plants would thrive under this lighting? I really like hydrocotlye sp. japan, cabomba, bacopa, anachris. would these work? also what others? more info: I have gravel substrate and would like to leave that as is.
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Old 04-22-2013, 12:13 PM   #2 
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the watts per gallon concept works better for larger tanks. The more accurate measurement for lighting is PAR. -the amount of light useable by plants. generally T8 are considered low-med light :)

Last edited by ao; 04-22-2013 at 12:58 PM.
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Old 04-22-2013, 12:48 PM   #3 
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Quote:
Originally Posted by aokashi View Post
the watts per gallon concept works better for later tanks. The more accurate measurement for lighting is PAR. -the amount of light useable by plants. generally T8 are considered low-med light :)
later tanks? what does that mean?

ok so the 5.5 with the 14w t8 low-med. correct? it just seems so bright!

what about the other 2? the bulb packaging says: 50/50 aquarium lamp. 10 watt mini compact fluorescent. 50% 10,000k daylight, 50% true actinic bluelight
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Old 04-22-2013, 01:00 PM   #4 
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Red face

Quote:
Originally Posted by Jexx View Post
later tanks? what does that mean?

ok so the 5.5 with the 14w t8 low-med. correct? it just seems so bright!

what about the other 2? the bulb packaging says: 50/50 aquarium lamp. 10 watt mini compact fluorescent. 50% 10,000k daylight, 50% true actinic bluelight

haha oops "larger". fixed!

I'm not familiar with actinic lighting. that's the blue light right? I tend to think they're for marine fish? maybe you should compare it with your current T8. I am inclined however to think it would be low light ^___^ but don't take my word on that
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Old 04-22-2013, 01:27 PM   #5 
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bahhh. ya it just says it promotes photosynthesis in plants and coral. It looks pretty ^_^. how do I compare it? I don't have any real plants in any of my tanks yet lol/ The difference I visually see between them is: the T8 is bright and casts more of a yellow light on everything but less yellow than incandescent. its a neutral yellow though.. if that makes sense. i guess it looks like bright sunlight. The 50/50 lights are blue-er and give everything a blue wash. they are slightly less bright and i would say it looks like sunlight shining through shallow sea water. I don't think I am helping my question any lol I am so confused.
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Old 04-22-2013, 02:08 PM   #6 
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XD I am confused too!
I would say to go with low light plants in the tank running the 10w bulb :)
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Old 04-22-2013, 02:17 PM   #7 
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ok good. thank you. so next question :p
low light plants: is there such a thing as too much light for them?

Last edited by ao; 04-22-2013 at 03:55 PM.
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Old 04-22-2013, 02:20 PM   #8 
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For some not sure exact ones though...yet to run into that problems self
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Old 04-22-2013, 02:27 PM   #9 
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very interesting. what plants do you have?
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Old 04-22-2013, 03:55 PM   #10 
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I believe there is ^_^
but probably not something you'd have to worry about :)
They will probably have trouble growing in say: direct sunlight.
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