Lighting ?
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Lighting ?

This is a discussion on Lighting ? within the Freshwater Aquarium Equipment forums, part of the Beginner Freshwater Aquarium category; --> Hey I have a question about my lighting. I have a 72 gallon bow front aquarium. I have 2 24" fluorescent twin tube Aquar ...

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Old 03-24-2012, 10:05 AM   #1
 
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Lighting ?

Hey I have a question about my lighting. I have a 72 gallon bow front aquarium. I have 2 24" fluorescent twin tube Aquar Reflectors, 120 volt, 50 watt, 60 hz.
I have 2 questions actually, since my tank is not planted it has artificial plants does it matter how long the lights stay on?
Is there a recommended bulb that would not be so bright but still light up tank?
I have Aqua Rays Fresh & Saltwater bulbs in the reflector by GE, I only have 1 bulb in each reflector though. Appreciate any ideas you may have.
Thanks
J
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Old 03-24-2012, 10:33 AM   #2
 
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Depends on what fish you stock as to whether or not the lighting will be sufficient for them...some fish like bright lights, other like dim light. Saltwater lights tend to be more powerful than freshwater lights due to light required by live rock and corals. Perhaps purchasing a light bulb for freshwater would be more suited than the saltwater bulb.

Generally aim for keeping the tank lights on for 6-8 hours a day, this will prevent nuisance algae from forming.
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Old 03-24-2012, 11:00 AM   #3
 
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Quote:
Originally Posted by Tazman View Post
Depends on what fish you stock as to whether or not the lighting will be sufficient for them...some fish like bright lights, other like dim light. Saltwater lights tend to be more powerful than freshwater lights due to light required by live rock and corals. Perhaps purchasing a light bulb for freshwater would be more suited than the saltwater bulb.

Generally aim for keeping the tank lights on for 6-8 hours a day, this will prevent nuisance algae from forming.

I have a pair of turquoise rainbow
6 rummy nose tetras
and 2 clown loaches
I'm in the process of restocking and seems like most fish I want say dim light floating plants...
I have artificial plants. So not sure if there is a dimmer bulb???
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Old 03-24-2012, 12:00 PM   #4
 
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is that wattage for one of the fixtures? it is not the usual number, 24" T8s are 17 watts and 24" T5HOs are 24 watts
ragardless 2 24" tubes in-line over a four foot tank is fairly low light even if it is the T5HO, the only concern really is algae, which shouldn't be a problem with this set up, though the photoperiod should roughly mimic the natural day/night cycle for the fish
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Old 03-24-2012, 01:22 PM   #5
 
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I missed the part in the original post regarding plants, the photoperiod will probably need to be more limited to prevent excess algae without live plants, moreso if the fixture is T5HO
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Old 03-24-2012, 03:03 PM   #6
 
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Quote:
Originally Posted by Quantum View Post
is that wattage for one of the fixtures? it is not the usual number, 24" T8s are 17 watts and 24" T5HOs are 24 watts
ragardless 2 24" tubes in-line over a four foot tank is fairly low light even if it is the T5HO, the only concern really is algae, which shouldn't be a problem with this set up, though the photoperiod should roughly mimic the natural day/night cycle for the fish
Yes the wattage is for one of tube fixtures. I have one on each side of tank and it has two tubes in each fixture. Am I making sense?
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Old 03-24-2012, 03:34 PM   #7
 
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yes, two 24" two-tube fixtures side-by-side for a total of four 24" tubes, though you are only using one tube per fixture, over a 48"x 18" tank

do you find this too bright? do you want to keep the lights on longer or do you think they may be on too much?
I guess it really doesn't matter how long they are on without live plants, but the fish will need some period of darkness (10-12 hrs) and the longer the lights are on the more likely algae will grow out of control

Last edited by Quantum; 03-24-2012 at 03:36 PM..
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Old 03-24-2012, 03:38 PM   #8
 
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Quote:
Originally Posted by Quantum View Post
yes, two 24" two-tube fixtures side-by-side for a total of four 24" tubes, though you are only using one tube per fixture, over a 48"x 18" tank

do you find this too bright? do you want to keep the lights on longer or do you think they may be on too much?
I guess it really doesn't matter how long they are on without live plants, but the fish will need some period of darkness and the longer the lights are on the more likely algae will grow out of control
Just worried about lights being on too much. I get up early and go to bed late. Not sure I'm giving them enough night. I read in another thread something about lights on 7 or 8 hrs but that was planted tank.
Some of the fish profiles say fish prefer dim lighting to have floating plants. Don't want to stress them with too much light!!
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Old 03-24-2012, 03:57 PM   #9
 
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the easiest thing to do is to get a timer for the lights, they are cheap and available at HD/Lowes or similar, this way the lights will come on and go off at the same time each day automatically so you won't be tuning the lights on and off multiple times a day or having them on too long, pick a time you like just make sure there is complete darkness for at least 10-12 hrs a day

most fish do prefer lower light conditions, not sure exactly what you have as far as type of tube, what diameter are they and exactly how long?
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Old 03-24-2012, 04:23 PM   #10
 
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Quote:
Originally Posted by Quantum View Post
the easiest thing to do is to get a timer for the lights, they are cheap and available at HD/Lowes or similar, this way the lights will come on and go off at the same time each day automatically so you won't be tuning the lights on and off multiple times a day or having them on too long, pick a time you like just make sure there is complete darkness for at least 10-12 hrs a day

most fish do prefer lower light conditions, not sure exactly what you have as far as type of tube, what diameter are they and exactly how long?
Aqua Rays for Fresh & Saltwater by GE. 18x1.0x1.0
Item Description

Aqua Rays Aquarium Lighting, 15 Watts, 1ct






Enhances colors
Supports plant growth in freshwater and coral growth in saltwater




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