Which of the "Glo" lights would be best for my aquarium? - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 12 Old 12-16-2011, 01:37 PM Thread Starter
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Which of the "Glo" lights would be best for my aquarium?

Here's the facts:
-30 gallon planted freshwater community
-Planted
-Single fluorescent bulb hood

I have the el-cheapo bulb in currently that came with the hood, but I want a better bulb for my plants.

Can anyone tell me which Glo bulb would be best for me?
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post #2 of 12 Old 12-16-2011, 02:42 PM
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La Reina, from the information I have gathered doing research for my own tank I would suggest you get a bulb that has a 6500k rating or labeled full spectrum. If you have a standard hood for the size of your tank I'm assuming you have an 18" t8 bulb, but getting more information about the size of fixture you have will be helpful.
You're asking for the best Glo bulb so I think you're talking about the Hagen bulbs. If so, your best bet would be either the life-glo or sun-glo. If you are looking for a possibly cheaper solution, your local home depot or lowes should sell appropriate 6500k "daylight" bulbs in this size. I have the GE daylight bulbs that are 6500k and they seem to support my 55g planted tank so far.
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post #3 of 12 Old 12-17-2011, 11:08 AM
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Agree. In the "Glo" series, the Life-Glo is the best single tube, I use this on all my single-tube tanks. The Sun Glo will work but is much warmer (= more red, less blue in the mix) and I prefer a cooler hue such as the Life-Glo and comparable tubes. The "daylight" with a kelvin around 6500K mentioned by rjwwrx provbide this, almost identical to the Life-Glo. I have Phillips Daylight Deluxe 6500K as the second tube on my dual-tube tanks (with a Life-Glo). Sylvania and GE also make similar. These will be less expensive than Life-Glo. And remember that any T8 tube needs to be replaced every 12-18 months.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #4 of 12 Old 12-22-2011, 01:37 PM
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I agree (having been advised by Byron in the past!). The one thing I'll say is that finding a T8 daylight bulb from places like Home Depot for your tank will be difficult. I'm not sure anyone actually makes them in 18" lengths. I couldn't find any in stores or on manufacturer's sites. The Life-Glo is the Hagen bulb that you want.

Hagen also makes a smaller series of bulbs (T5 HO), which allows you to mount two small bulbs instead of one larger one. In this case you could combine a Life-Glo with a Power-Glo. I don't know if there is much benefit to this, depending on what you have in your aquarium, but you might like a slightly different colour of light. I've never used the T5 HO bulbs before, so I can't comment on price and reliability.

cheers
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post #5 of 12 Old 12-22-2011, 02:20 PM
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shmish, availability must vary in different locations. I was able to find 18" t8 tubes at my local home depot and lowes without any issues. I found the GE daylight bulbs I run at Lowes.
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post #6 of 12 Old 12-22-2011, 02:54 PM
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Quote:
Originally Posted by shmish View Post
I agree (having been advised by Byron in the past!). The one thing I'll say is that finding a T8 daylight bulb from places like Home Depot for your tank will be difficult. I'm not sure anyone actually makes them in 18" lengths. I couldn't find any in stores or on manufacturer's sites. The Life-Glo is the Hagen bulb that you want.

Hagen also makes a smaller series of bulbs (T5 HO), which allows you to mount two small bulbs instead of one larger one. In this case you could combine a Life-Glo with a Power-Glo. I don't know if there is much benefit to this, depending on what you have in your aquarium, but you might like a slightly different colour of light. I've never used the T5 HO bulbs before, so I can't comment on price and reliability.

cheers
T5 is a different type of tube than T8 and will not fit T8 fixtures. T5 is also more intense light. It was actually designed initially for marine reef tanks that need bright light, to provide intense light with fewer tubes than the T8 would require. Over planted tanks this can be very bright, and cause problems. I have tried T5 on my larger tanks and went back to T8 as more suitable for natural planted systems.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #7 of 12 Old 12-22-2011, 03:08 PM
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@ rjwwrx This is true. I'm in Vancouver and the OP is in Calgary, and I couldn't find any 18" bulbs in Rona, HD or Canadian Tire. I think I even called a commercial lighting store and they didn't have them. It's not uncommon for Canadians to have less products to choose from!
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post #8 of 12 Old 12-22-2011, 04:29 PM
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just noticed your location. Bummer that it is hard to find lights.
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post #9 of 12 Old 12-22-2011, 07:43 PM
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I'm in Vancouver too, and we have to rely on fish stores that carry the Hagen, ZooMed, Coralife, etc brands for the "non-standard" sizes for aquarium hoods and tanks. I can use the cheaper daylight tubes in my 48-inch tube fixtures, but the others have Life-Glo.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #10 of 12 Old 12-23-2011, 12:12 PM
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Byron, I'm curious what 48" t8 fixtures you use. I have trouble finding them. All the 48" fixtuers I find are t5 HO.
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