Which T5 bulbs for a 37 gallon high aquarium. - The Planted Tank Forum
 
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post #1 of 7 (permalink) Old 08-18-2013, 05:01 PM Thread Starter
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Which T5 bulbs for a 37 gallon high aquarium.

Hey guys, I recently just acquired my first pair of T5's which i'm super stoked on as i've been using spiral CFL's for the most part until now. I managed to get the fixture super cheap on Kijiji & it unfortunately came with marine bulbs. It currently holds a 10,000k white bulb and an actinic blue bulb. I'm just confused as to whether I should get the colormax and then the 6700 k daylight bulb or if i should get the colourmax and keep the 10,000 k. Any suggestions would help!
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post #2 of 7 (permalink) Old 08-18-2013, 05:32 PM
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I like the 6700+10,000K mixture.

It's basically going to come down to what you think looks best. Color temp is a wacky rating, not all that tied to spectrum directly for some bulbs.
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post #3 of 7 (permalink) Old 08-18-2013, 05:37 PM
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What size bulb/inches can fit your fixture?
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post #4 of 7 (permalink) Old 08-18-2013, 05:43 PM Thread Starter
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Quote:
Originally Posted by jpappy789 View Post
I like the 6700+10,000K mixture.

It's basically going to come down to what you think looks best. Color temp is a wacky rating, not all that tied to spectrum directly for some bulbs.
I just want something thats going to allow me to actually grow some moderate/high light plants as opposed to having to always keep low light plants like my last fixture. I've heard the rosetta bulb makes your tank look dull but is great for plants?


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Originally Posted by thejoe View Post
What size bulb/inches can fit your fixture?
It's a 30" inch fixture so the bulbs at the store are listed as "30 inch" but in reality the bulb is 27.75" which makes it impossible to pickup at the hardware store as they only carry 24", 36" etc.
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post #5 of 7 (permalink) Old 08-18-2013, 05:47 PM
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This is good, your going have 60 watts of T5 lighting over your tank.
I am now using this same setup and found the 6700k to work the best for me in growing plants.
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post #6 of 7 (permalink) Old 08-18-2013, 05:56 PM
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Take one of the t5 bulbs out of your fixture and measure it. you might be surprised.
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post #7 of 7 (permalink) Old 08-18-2013, 06:06 PM
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Usually they are marked for the size fixture, 24", 30", 36", etc. not the specific length of the bulb.

I've never had issues growing anything that's marketed for plants in terms of spectrum for T5s. Granted, I'm sure there are better bulbs out there now so I wont be much help when it comes to specific brands.
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