Philips bulbs for plants and aquariums - The Planted Tank Forum

 
LinkBack Thread Tools Display Modes
post #1 of 15 (permalink) Old 04-15-2004, 01:25 AM Thread Starter
Wannabe Guru
 
jcgd's Avatar
 
Join Date: Feb 2004
Location: Calgary, Alberta, Canada
Posts: 1,985
Send a message via MSN to jcgd
Does anyone know anything about these floresent bulbs? The don't say the K on the but the package says they are for growing plants or for aquariums. The bulb gives off a soft pink color. You can get them at places like home depot.

Thanks.
jcgd is offline  
Sponsored Links
Advertisement
 
post #2 of 15 (permalink) Old 04-15-2004, 01:52 AM
Wannabe Guru
 
ninoboy's Avatar
 
Join Date: Jan 2004
Location: Las Vegas , Nevada
Posts: 1,261
Many of plant bulbs don't mention the K rating. But they do have peaks on red and blue region. I think it's because they don't want to mislead people with the K rating. GE plant/aquarium bulb is red and has a K rating of 3200. Many soft white bulb that rated at 3200K emit yellow or orange color. Another GE SPX bulb emit soft pink color and has K rating close 5000. Most 5000K bulbs are yellow. The bright pink one we usually see the the GE aquaray 9325. So the Kelvin doesn't always tell you what the real color is.

But when GE and Philips mention "plant", they always have U shape spectrum graph (high on red and blue)
ninoboy is offline  
post #3 of 15 (permalink) Old 04-15-2004, 01:13 PM
Planted Tank VIP
 
GulfCoastAquarian's Avatar
 
Join Date: Jul 2002
Location: Winston-Salem, NC
Posts: 3,578
What nino was trying to say is that the Philips P&A bulbs you saw at Home Depot will work very nicely in your planted tank.

- Sam P -
plantedtanker in limbo - all tanks currently in storage
GulfCoastAquarian is offline  
post #4 of 15 (permalink) Old 04-15-2004, 02:00 PM
Planted Tank Enthusiast
 
Join Date: Nov 2003
Location: central IL
Posts: 808
I just bought 2 of them and i hate them. The light is too yellow. I like the 9325 K much much better
fishyboy is offline  
post #5 of 15 (permalink) Old 04-15-2004, 02:37 PM
Wannabe Guru
 
ninoboy's Avatar
 
Join Date: Jan 2004
Location: Las Vegas , Nevada
Posts: 1,261
Agree. No bulbs those say for "plant and aquarium" look nice.
ninoboy is offline  
post #6 of 15 (permalink) Old 04-15-2004, 08:58 PM
Wannabe Guru
 
Overfloater's Avatar
 
Join Date: Jan 2004
Location: Columbus, OH
Posts: 1,984
Quote:
No bulbs those say for "plant and aquarium" look nice.
That's why you mix them with a more eye-pleasing bulb. They grow plants great.
Overfloater is offline  
post #7 of 15 (permalink) Old 04-15-2004, 09:35 PM Thread Starter
Wannabe Guru
 
jcgd's Avatar
 
Join Date: Feb 2004
Location: Calgary, Alberta, Canada
Posts: 1,985
Send a message via MSN to jcgd
Okay. I have the 20 watt plant and aquarium bulb, a 20 watt daylight bulb (6500K) and a 15 watt aquaglo over my 20 High. Is this any good?
I also have co2
jcgd is offline  
post #8 of 15 (permalink) Old 04-15-2004, 11:17 PM
Planted Member
 
Join Date: Mar 2004
Posts: 175
Those are very good bulb choices.
Capt. is offline  
post #9 of 15 (permalink) Old 04-16-2004, 02:13 PM
Planted Tank VIP
 
GulfCoastAquarian's Avatar
 
Join Date: Jul 2002
Location: Winston-Salem, NC
Posts: 3,578
I've used both OSRAM/Sylvania Plant & Aquarium Gro-Lux bulbs and General Electric's Plant & Aquarium bulbs and not only do they grow plants well, they have a slight pinkish tone that I believe makes the fish look fantastic (especially Rasbora heteromorpha!).
If the bulbs you purchased are really yellow, then they're probably not fit for planted aquarium use. Let us know how it goes.

- Sam P -
plantedtanker in limbo - all tanks currently in storage
GulfCoastAquarian is offline  
post #10 of 15 (permalink) Old 04-16-2004, 03:36 PM
Planted Tank Enthusiast
 
rain-'s Avatar
 
Join Date: Mar 2004
Location: Finland
Posts: 714
Here is a good site with pictures of different tubes used in the same tank, there's Philips, Arcadia, Sylvania etc. Some metal halides too and the spectrum charts.

Samu Saurama - Light Comparison
rain- is offline  
post #11 of 15 (permalink) Old 04-16-2004, 04:57 PM
Planted Tank VIP
 
GDominy's Avatar
 
Join Date: Jul 2002
Location: Victoria,British Columbia, Canada
Posts: 3,428
rain, that page is simply amazing. That is the kind of information that I have been looking for, for quite a while now. I love the fact they have a photo and a sprectral analysis of the light.

Great post!
GDominy is offline  
post #12 of 15 (permalink) Old 04-16-2004, 07:01 PM
Planted Tank Enthusiast
 
rain-'s Avatar
 
Join Date: Mar 2004
Location: Finland
Posts: 714
It's made by a friend of mine =) It really is quite usefull. I have been using Philips 840 tubes, but those pictures made me want to change to 965, it looks so much better.

And then I bought metal halides with those Philips Mastercolour (942) bulbs. But well, I still have smaller tanks that need fluorescent lighting, maybe they will be less yellow (with peat extract it doesn't really matter though, everything looks yellow then) =)
rain- is offline  
post #13 of 15 (permalink) Old 04-16-2004, 07:14 PM
Planted Tank VIP
 
GDominy's Avatar
 
Join Date: Jul 2002
Location: Victoria,British Columbia, Canada
Posts: 3,428
Can you ask your friend if I can use the Spectral graphs on my site? I will give him full credit.
GDominy is offline  
post #14 of 15 (permalink) Old 04-16-2004, 07:32 PM
Planted Tank Enthusiast
 
rain-'s Avatar
 
Join Date: Mar 2004
Location: Finland
Posts: 714
I'll ask =)
rain- is offline  
post #15 of 15 (permalink) Old 04-18-2004, 07:10 AM
Planted Tank Enthusiast
 
Join Date: Apr 2004
Location: Des Moines, Iowa
Posts: 979
Kelvin (color temp) is a measure of the combined wavelengths of a bulb, CRI would give you a more accurate measure of how smooth the output is, the higher the number, the less spikes and dips amongst specific wavelengths of the visible spectrum, the higher the CRI, the smoother the output and the greater the color accuracy.

The problem with "gro bulbs" is that they emphasize the red wavelengths that algae can use more efficiently than plants. From my experience and a little research, the higher temps are readily used by plants while depriving algae of it's ideal wavelengths.

Here's another good analysis of bulbs:

http://www.geocities.com/Heartland/H...7/spectra.html
glass-gardens.com is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the The Planted Tank Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome