new plants are all dieing - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 19 Old 05-04-2010, 02:00 PM Thread Starter
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again thanks for all the help, so if i get a daylight bulb that would be enough, as if i am going to do this, i intend do it right. i will take a look on the net and in my local fish store to see if i can find it, thanks for all the help so far
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post #12 of 19 Old 05-04-2010, 02:20 PM Thread Starter
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i'm thinking about this for a new bulb http://www.valueaquaticstrade.co.uk/...tt-p-2998.html
any ideas on it's suitability "promotes photosynthesis" it says on it's description
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post #13 of 19 Old 05-04-2010, 02:20 PM
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Originally Posted by joe1992w View Post
again thanks for all the help, so if i get a daylight bulb that would be enough, as if i am going to do this, i intend do it right. i will take a look on the net and in my local fish store to see if i can find it, thanks for all the help so far
Don't buy the bulb at a fish store. Buy it at wal-mart, lowes, home depot, etc.
Just make sure it says 6500k on it, and you can get the same quality of light for half the price.

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post #14 of 19 Old 05-04-2010, 02:50 PM Thread Starter
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ah, i think that this may be the case in the us but i live in the uk and our walmart equivalent is terrible at anything but groceries, but thanks for the tip i will try and look in a non fish store for a cheaper buy, could you please explain what the 6500k is in refernece to
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post #15 of 19 Old 05-04-2010, 02:55 PM Thread Starter
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i followed your advice but how am i supposed to know what wavelengths they emit and if it will do my plants and good? http://www.lyco.co.uk/Light-Bulbs/Fl...1324/p221.aspx

i have found that sight to be very cheap but the colours are named white, cool white, warm white, any ideas on which one if any would be suitable
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post #16 of 19 Old 05-05-2010, 11:36 AM
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Joe, the tube in the first link (in post #12) I would not recommend; it is a purplish hue and weaker.

The tubes in the second link (post #15): Cool white means a crisper white, slightly more blue than red in the colour mix. Warm white is the opposite, slightly more red/yellow. "White" may be any one of a few things, but should be in between the cool and warm. But before I bought one, i would want to know the Kelvin rating and/or see the spectrum graph. The Kelvin is the "colour" of light. The sun at mid-day is approximately 5700K, so a full spectrum or daylight tube would be around 6000K. A higher K number indicates progressively more blue and less red, so a cooler white; a lower K number indicates slightly more red and less blue, so a warmer white. However, the number alone is not always reliable, since manufacturers can alter the colours.

Another question though, if you have two tubes in the fixture now, can you remove one of them and still have the other light? As I said before, the two tubes you have, assuming they are what I previously thought they were, are probably good, it is just a lot of light. Replacing the tubes if both have to be lit may not be necessary; but if you can use only one of them (some fixtures are wired this way), it would work.

Byron.

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 #17 of 19 Old 05-12-2010, 02:09 PM Thread Starter
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sorry if my earlier post was unclear but i only have one bulb ( that gives bright white light with a hint of blue) which is where i think i was unclear.

also how hard is it to come across some 1" diameter light clips for the hood of my tank, i snapped mine trying to get the bulb out. thanks
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post #18 of 19 Old 05-12-2010, 02:19 PM
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Originally Posted by joe1992w View Post
sorry if my earlier post was unclear but i only have one bulb ( that gives bright white light with a hint of blue) which is where i think i was unclear.

also how hard is it to come across some 1" diameter light clips for the hood of my tank, i snapped mine trying to get the bulb out. thanks
I'm not sure what the clips are, perhaps a thread in the equipment section (with a photo if possible) will get some advice. B.

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 #19 of 19 Old 05-12-2010, 02:26 PM
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Sorry if this was kind of resolved, but once you find the kelvin on the package its the same place on every brand.

Just pick a tube up and really scour every side for a number with a K.

I use cool white for my tanks, it's about 6700k most of the time. Still, check it first.

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^^ genius
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