metal halide for FW question

[Dan F]

This guys right, however, most people in the hobby long enough see it the same way n that they call the bulbs 10k all the way on up to 20k. The lower the number the more yellow till 10k which is the whitest by most standards and bluer as you move up in numbers to 20k....so touchy...

Just didn't want anyone to be mislead! As I see it most people that have been in the hobby long enough (30 years for me) know what the "k" stands for in a 10,000k bulb.

 

[benray4fun]

Just didn't want anyone to be mislead! As I see it most people that have been in the hobby long enough (30 years for me) know what the "k" stands for in a 10,000k bulb.

I said You're right, but the K also stands for three zero's. 30 yrs is a long time and I've been in the hobby right about that myself or since 1991, it's good that you're more tentative to detail, but no need to argue......lol

 

[Dan F]

Are your lights Mogul base or HQI (double-ended)? Just curious, because it makes a difference as to what's available.

If you want a more natural daylight look you are going to want a 5600k or a 6700k bulb. The color temperature of daylight is 5600k.

There are more bulbs available in the blue end of the spectrum because most people use MH lighting in a marine tank. The blue light mimics the effect of light after passing through several feet of sea water, which filters out much of the red and yellow.

 

[LD50]

here is an example of a coralife 10k bulb and a coralife 03actinic together, keep in mind this is against white pool filter sand, so if you have black sand or a diff color substrate it will greatly effect the look of the light. Its kinda trial and error with your tank but in the likely chance you have pool filter sand this is what those two bulbs look like.

 

[cichla81]

Are your lights Mogul base or HQI (double-ended)? Just curious, because it makes a difference as to what's available.

If you want a more natural daylight look you are going to want a 5600k or a 6700k bulb. The color temperature of daylight is 5600k.

There are more bulbs available in the blue end of the spectrum because most people use MH lighting in a marine tank. The blue light mimics the effect of light after passing through several feet of sea water, which filters out much of the red and yellow.

they are double ended. im having a hard time finding double ended 70 watt 56k or 10k

 

[benray4fun]

Here's a 10k 70w link...
http://www.aquariumspecialty.com/catalog/product_info.php?products_id=5530

 

[cichla81]

sweet thanks for the link, this 14k makes my tank look like the ocean. the wife likes it but i want it to look more natural

 

[Zander_The_RBP]

I said You're right, but the K also stands for three zero's. 30 yrs is a long time and I've been in the hobby right about that myself or since 1991, it's good that you're more tentative to detail, but no need to argue......lol

yes it does but not in this context 10k and 10000k are 2 very different colour tempuratures they are not interchangable terms

 

[Dan F]

they are double ended. im having a hard time finding double ended 70 watt 56k or 10k

Marine Depot has them in 10,000k and up, but no 5600k or 6700k. The 10,000k will look a lot more natural than the 14,000k bulbs you have now. If you have florescent lighting as well you could get some relatively warm spectrum bulbs to balance things out.

 

[benray4fun]

yes it does but not in this context 10k and 10000k are 2 very different colour tempuratures they are not interchangable terms

I could say give me a 10, 14, or 20 without even mentioning the "K" cuz the color temperature (kelvin) is already given in the numbers. So 10k is short for 10,000... In any forum it is so, including this one...notice they use it all the time?...