Juwel Rekord 600 T8 Lightning - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 6 Old 08-30-2010, 09:16 AM Thread Starter
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Juwel Rekord 600 T8 Lightning

I am soon going to change the light after one year and do not know what should i get. Juwel lightning have Day-Lite and Warm-Lite both at 15W each. What should i get to maximize the plant growth? I know that the light is low but at least I try to give more.

Also it is right that after one year the light will deteriorate that is why we should change them at a yearly bases right?

Thanks
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post #2 of 6 Old 08-30-2010, 10:42 AM
get a better light and it will help keep the plants stay healthier for a longer time.plus they grow better and lusher with it

5x2x2 aro,highfin bat,fei feng,ST,albino tinfoil,c.perch
4x1.5x1.5 planted tetras,harlequins,
otto,WMM,2 types of celebes rainbows,rcs,amano, bamboo,red ramhorns,MTS
3.5x2.5x2 flowerhorn,pleco
3x1.5x1.5 russel's lion,blue cleaner,sixline and leopard wrasse,maroon clown pair,green chromis,scorpion,tiger cowrie,turbo,lyretail anthias,jewel,anemone,star polyp,marbled and giant green mushi,zoa
2x1x1 nano sw shrimps
22 May 2012
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post #3 of 6 Old 08-30-2010, 12:31 PM
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The Day-lite should be better, but do you have a kelvin rating for it? "Daylight" is usually around 6500K which is fine. "Warm" is less kelvin, more red and less blue, and might also work (depending upon the rating) but the colour rendition will be different. The "daylight" should bring out the natural colours on fish and plants.

T8 tubes last 3 years. The old T12 (the "fatter" tubes) had to be replaced every year, or so most suggested.

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 6 Old 08-30-2010, 05:36 PM Thread Starter
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These bulbs are the Juwel make. They do not have any Kelvin rating for them. I will get the Day Lite then. Also in the website they suggest to be changed every year because the light will deteriorate and plants will not stay healthy any more. That is why i am asking here to see if this is true.
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post #5 of 6 Old 08-30-2010, 06:19 PM
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Quote:
Originally Posted by migdem View Post
These bulbs are the Juwel make. They do not have any Kelvin rating for them. I will get the Day Lite then. Also in the website they suggest to be changed every year because the light will deteriorate and plants will not stay healthy any more. That is why i am asking here to see if this is true.
There is varying opinion. Some run them until they actually burn out; I don't recommend this because there is no doubt that they do deteriorate in intensity as they burn, and it is also a fact that algae increases when they are left this long which means the intensity is no longer sufficient for plants. Some say 6 months or 1 year--but as I mentioned previously that applied to the T12 tubes. Karen Randall of the Aquatic Gardeners Assoc. in the 1990's recommended 6 months to 1 year max. But the new T8 tubes are different; they use less energy, they produce higher intensity light and by different means in the way they are made. Diana Walstad, Tom Barr (if memory serves me), Peter Hiscock have all said 3 years.

The website is out to sell their products, and unfortunately this has to be remembered when you are taking "advice" from manufacturers or retailers. I used to replace my T12's every year. I now have T8 tubes and since installing them in October 2008 and July 2009 I have not replaced them and I intend to go 3 years before I do.

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 #6 of 6 Old 08-31-2010, 02:10 AM Thread Starter
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Ok thank you
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