Hi...
I'm upgrading my lighting to power compacts and have the option of
getting several different kelvin rated bulbs. I realize that the
higher the kelvin rating, the cooler the visual of the bulb appears. I
don't like my tank looking yellow with a 5500k bulb...so I want to get
a 10000k bulb for a crisper white light, but I've heard that I cant
grow plants very well with 10000k? Is this right? Is 10000k considered
a salt water/ marine bulb?

I've heard everyone raving about these GE 9325k bulbs and how great
they look but, aren't they awful close to 10000k bulb?

What about 6700k? Are these pretty yellow/ orange looking?

Thx
Nick D.

(Nick D) wrote in
om:

What about 6700k? Are these pretty yellow/ orange looking?

That's the bulb you want. 10k is good for reefs, but plants utilize
different spectrums than corals (due to the difference in attenuation
between 2 feet of fresh water and 20 feet of salt water). 6700's look good
also in my opinion.

~Empty

--
'You're not friends. You'll never be friends. You'll be in love till it
kills you both. You'll fight, and you'll shag, and you'll hate each other
till it makes you quiver, but you'll never be friends. Love isn't brains,
children, it's blood... blood screaming inside you to work its will. I may
be love's bitch, but at least I'm man enough to admit it.'
Spike

(Nick D) wrote in
om:

What about 6700k? Are these pretty yellow/ orange looking?

That's the bulb you want. 10k is good for reefs, but plants utilize
different spectrums than corals (due to the difference in attenuation
between 2 feet of fresh water and 20 feet of salt water). 6700's look good
also in my opinion.

~Empty

--
'You're not friends. You'll never be friends. You'll be in love till it
kills you both. You'll fight, and you'll shag, and you'll hate each other
till it makes you quiver, but you'll never be friends. Love isn't brains,
children, it's blood... blood screaming inside you to work its will. I may
be love's bitch, but at least I'm man enough to admit it.'
Spike

"Nick D" wrote in message
om...
Hi...
I'm upgrading my lighting to power compacts and have the option of
getting several different kelvin rated bulbs. I realize that the
higher the kelvin rating, the cooler the visual of the bulb appears. I
don't like my tank looking yellow with a 5500k bulb...so I want to get
a 10000k bulb for a crisper white light, but I've heard that I cant
grow plants very well with 10000k? Is this right? Is 10000k considered
a salt water/ marine bulb?

Yes. If you put a 10000K bulb over a planted freshwater tank, chances are
that the only you will grow are algae.

I spoke to the Giesemann technical people about this at length, and they
do not recommend to go above 5700K. Yes, the light looks a bit yellow,
similar in color to what you get from an incandescent light bulb but it also
discourages algae. You might get away with 6700K, but I would
definitely not go above that. (6700K looks quite white, even a little cold,
at least to my eyes. I suspect that 10000K would look positively awful
on a planted freshwater tank.)

Cheers,

Michi.

--
Michi Henning Ph: +61 4 1118-2700
ZeroC, Inc. http://www.zeroc.com

Michi Henning wrote:
"Nick D" wrote in message
om...
Hi...
I'm upgrading my lighting to power compacts and have the option of
getting several different kelvin rated bulbs. I realize that the
higher the kelvin rating, the cooler the visual of the bulb appears.
I don't like my tank looking yellow with a 5500k bulb...so I want to
it also discourages algae. You might get away with 6700K, but I would
definitely not go above that. (6700K looks quite white, even a little
cold, at least to my eyes. I suspect that 10000K would look
positively awful
on a planted freshwater tank.)

Cheers,

Michi.

Have a look here, it shows the same aquarium under different combinations of
tubes.

http://www.culbertfamily.com/jenya/aquarium/lights/



--
Don`t Worry, Be Happy

Sandy
--

E-Mail:-
Website:- http://www.ftscotland.co.uk
IRC:- Sandyb in #rabble uk3.arcnet.vapor.com Port:6667
#Rabble Channel Website:- http://www.ftscotland.co.uk/rabbled
ICQ : 41266150

"Sandy" wrote in message
...

Have a look here, it shows the same aquarium under different combinations of
tubes.

http://www.culbertfamily.com/jenya/aquarium/lights/

That's interesting, thanks a lot for the link!

It's difficult to judge colors on-screen -- from what I can see from the
pictures
the pictures in column 2 seem to give the most "natural" color reproduction,
if a bit on the cold side. The 6400K illumination seems to be a bit devoid of
read and yellow tones, as far as I can tell. A bit like the "cold" flourescent
light you get in offices. Personally, I prefer slightly warmer tones.

Cheers,

Michi.

--
Michi Henning Ph: +61 4 1118-2700
ZeroC, Inc. http://www.zeroc.com

what are the red/blue lights?

I'd like to see a better explanation of that page... red/blue doesnt tell me
anything....

--
RedForeman ©®


"Sandy" wrote in message
...
Michi Henning wrote:
"Nick D" wrote in message
om...
Hi...
I'm upgrading my lighting to power compacts and have the option of
getting several different kelvin rated bulbs. I realize that the
higher the kelvin rating, the cooler the visual of the bulb appears.
I don't like my tank looking yellow with a 5500k bulb...so I want to
it also discourages algae. You might get away with 6700K, but I would
definitely not go above that. (6700K looks quite white, even a little
cold, at least to my eyes. I suspect that 10000K would look
positively awful
on a planted freshwater tank.)

Cheers,

Michi.

Have a look here, it shows the same aquarium under different combinations
of
tubes.

http://www.culbertfamily.com/jenya/aquarium/lights/



--
Don`t Worry, Be Happy

Sandy
--

E-Mail:-
Website:- http://www.ftscotland.co.uk
IRC:- Sandyb in #rabble uk3.arcnet.vapor.com Port:6667
#Rabble Channel Website:- http://www.ftscotland.co.uk/rabbled
ICQ : 41266150

RedForeman ©® wrote:
what are the red/blue lights?

I'd like to see a better explanation of that page... red/blue doesnt
tell me anything....



I would say they are just the normal coloured fluorescent tubes you get in
discos, shop fronts and butchers (makes the meat look redder).


--
Don`t Worry, Be Happy

Sandy
--

E-Mail:-
Website:- http://www.ftscotland.co.uk
IRC:- Sandyb in #rabble uk3.arcnet.vapor.com Port:6667
#Rabble Channel Website:- http://www.ftscotland.co.uk/rabbled
ICQ : 41266150

what are the red/blue lights?

I'd like to see a better explanation of that page... red/blue doesnt tell me
anything....

--
RedForeman ©®


"Sandy" wrote in message
...
Michi Henning wrote:
"Nick D" wrote in message
om...
Hi...
I'm upgrading my lighting to power compacts and have the option of
getting several different kelvin rated bulbs. I realize that the
higher the kelvin rating, the cooler the visual of the bulb appears.
I don't like my tank looking yellow with a 5500k bulb...so I want to
it also discourages algae. You might get away with 6700K, but I would
definitely not go above that. (6700K looks quite white, even a little
cold, at least to my eyes. I suspect that 10000K would look
positively awful
on a planted freshwater tank.)

Cheers,

Michi.

Have a look here, it shows the same aquarium under different combinations
of
tubes.

http://www.culbertfamily.com/jenya/aquarium/lights/



--
Don`t Worry, Be Happy

Sandy
--

E-Mail:-
Website:- http://www.ftscotland.co.uk
IRC:- Sandyb in #rabble uk3.arcnet.vapor.com Port:6667
#Rabble Channel Website:- http://www.ftscotland.co.uk/rabbled
ICQ : 41266150

"Sandy" wrote in message
...
RedForeman ©® wrote:
what are the red/blue lights?

I'd like to see a better explanation of that page... red/blue doesnt
tell me anything....


I believe they are usually used on reef tanks. If you look through a fish
magazine you should probably find some ads for such bulbs, they might be
able to tell you more info about the bulbs.

Harry




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"Sandy" wrote in message
...
RedForeman ©® wrote:
what are the red/blue lights?

I'd like to see a better explanation of that page... red/blue doesnt
tell me anything....


I believe they are usually used on reef tanks. If you look through a fish
magazine you should probably find some ads for such bulbs, they might be
able to tell you more info about the bulbs.

Harry




-----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
-----== Over 100,000 Newsgroups - 19 Different Servers! =-----

I'm familiar with actinic bulbs, but can't be certain if they don't actually
say the are red actinic, or blue actinic, like Sandy said, they coudl be
disco lights for all I/we know...

--
RedForeman ©®


"Harry Muscle" wrote in message
...
"Sandy" wrote in message
...
RedForeman ©® wrote:
what are the red/blue lights?

I'd like to see a better explanation of that page... red/blue doesnt
tell me anything....


I believe they are usually used on reef tanks. If you look through a fish
magazine you should probably find some ads for such bulbs, they might be
able to tell you more info about the bulbs.

Harry




-----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
-----== Over 100,000 Newsgroups - 19 Different Servers! =-----

"Sandy" wrote in message
...
RedForeman ©® wrote:
what are the red/blue lights?

I'd like to see a better explanation of that page... red/blue doesnt
tell me anything....


I believe they are usually used on reef tanks. If you look through a fish
magazine you should probably find some ads for such bulbs, they might be
able to tell you more info about the bulbs.

Harry




-----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
-----== Over 100,000 Newsgroups - 19 Different Servers! =-----

I'm familiar with actinic bulbs, but can't be certain if they don't actually
say the are red actinic, or blue actinic, like Sandy said, they coudl be
disco lights for all I/we know...

--
RedForeman ©®


"Harry Muscle" wrote in message
...
"Sandy" wrote in message
...
RedForeman ©® wrote:
what are the red/blue lights?

I'd like to see a better explanation of that page... red/blue doesnt
tell me anything....


I believe they are usually used on reef tanks. If you look through a fish
magazine you should probably find some ads for such bulbs, they might be
able to tell you more info about the bulbs.

Harry




-----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
-----== Over 100,000 Newsgroups - 19 Different Servers! =-----

"Sandy" wrote in message
...
RedForeman ©® wrote:
what are the red/blue lights?

I'd like to see a better explanation of that page... red/blue doesnt
tell me anything....


I believe they are usually used on reef tanks. If you look through a fish
magazine you should probably find some ads for such bulbs, they might be
able to tell you more info about the bulbs.

Harry




-----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
-----== Over 100,000 Newsgroups - 19 Different Servers! =-----