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5,000 or 10,000K for a planted tank

This is a discussion on 5,000 or 10,000K for a planted tank within the Beginner Planted Aquarium forums, part of the Beginner Freshwater Aquarium category; --> Some fixtures will run T8 and T5, some won't. Have to look up the specifics for the fixture to know if it will. I ...

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5,000 or 10,000K for a planted tank
Old 11-03-2008, 09:22 PM   #11
 
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Some fixtures will run T8 and T5, some won't. Have to look up the specifics for the fixture to know if it will. I actually run a T12, 2 bulbs over two 10 gallon tanks and it is a lot of light for them. A dual T12 might do it. It doesn't make any difference what type of flourescent lighting. T12, T10, T8, T5 or even screw in compact flourescents. They will all grow plants as long as you have enough wattage, high enough lumens and the right Kelvin rating. The only real difference is the size of the fixture and the number of bulbs to get the same wattage and lumens. That and the cost for both the fixture and the bulbs.

As for DIY CO2, my total cost to run it on two 10 gallon tanks for 1 year was $57. This included sugar and yeast. I changed one bottle out on each tank every 2 weeks without much of a problem. I have yet to find a pressurized system that costs under $250 for the entire setup and that is up front. Well for any I would buy anyway. If you have a few bucks and want to inject CO2, DIY works just fine. Even I can afford $4-5 bucks a month and I am broke the day after I get paid.
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Old 11-03-2008, 10:32 PM   #12
 
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I don't think there's a fixture that will work with both T5 and T8, but you *should* be able to use T8 bulbs in a T12 fixture. The T8 bulbs aren't as fat, but the pins on the ends are exactly the same in both bulbs. T5's have pins that are closer together. If you can't find the right spectrum of T12's, you should be able to find T8's that will work.
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Old 11-03-2008, 10:39 PM   #13
 
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Of course, DIY is inexpensive on smaller tanks. Sorry I was referring to tanks more on the 75G + scale
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Old 11-05-2008, 12:10 PM   #14
 
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No worries Kritas, just my 2 cents there. I am all for going pressurized if you can even on a small tank. Better control, more stable than DIY and simply less hastle for sure.
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Old 11-05-2008, 07:49 PM   #15
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I'll probably try the T8's if they will fit. That way I can get just the right K rating. I really don't want algae problems.

Yeah, since the tank is smaller I think DIY is cheaper and since I just don't have the $$ for pressurized (someday....) that is what I am going to do. Thanks everyone.
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Old 11-07-2008, 01:11 AM   #16
 
well i bought new t5 lighting and it came with a 10k bulb. It caused my tank to explode in algae growth.
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Old 11-07-2008, 06:30 PM   #17
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Thanks for mentioning that! No 10,000 K for me then.
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Old 11-07-2008, 09:22 PM   #18
 
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that may not have been the cause...
u sure u hadnt just finished cycling? this more often than not causes an algae bloom.
I'm running a 18000K bulb on mine, cause I cant find any bulbs in aus. that are rated 6700k. I am not experiencing any algae problems...
sounds good fish_4_all,(forgot ur name uve been gone so long) I agree DIY is very convenient for smaller tanks, but then again, u cud just hook up the smaller tank to the bigger tanks bottle. whats Bob up to these days???
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Old 11-09-2008, 04:41 AM   #19
 
my tank has been running for over 8 years... im pretty sure its cycled... first algae bloom in years, my otos kept it in check. I just cut the amount of time the lights are on and its been fine since. Otos just had a feast for a few weeks
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Old 11-16-2008, 03:11 PM   #20
 
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Kim, the light spectrum does not affect how much light you have. the light spectrum is the color that the light seems to be to the naked eye. The only difference between 5000K and 10000K is that the 5 looks yellower, like real sunlight and the 10 looks whiter / bluer. As someone already mentioned you want a bulb that has what is called a full spectrum.
The lamp size difference between a T-12 and T-8 is only the diameter of the glass part. The pins on the end of a T-8 will fit a T-12 perfectly. They have the added advantage of being smaller so they do not block reflected light as much and more goes into the water from the reflector. A T-8 is also slightly more energy efficient and they are often available in a better color assortment than T-12s are. One final advantage for a fat fingered person like me is that I can get a grip on a T-8 in a fairly tight fixture where I would need tools to do anything with a T-12 in the same fixture.
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