Actinic bulb just for looks?? - Page 2 - The Planted Tank Forum
LinkBack Thread Tools Display Modes
post #16 of 17 (permalink) Old 01-11-2013, 04:32 AM
Algae Grower
funkman262's Avatar
Join Date: Nov 2010
Location: Tampa, Florida
Posts: 124
I find it hard to believe that actinics (or blue LEDs) would fail to grow plants or corals considering the chloryphyll-a pigment peaks at around 435nm, chlorophyll-b around 470n, and the combined photosynthesis of all pigments peaks at about 425nm (even higher than the peak in the warm spectrum). I built my own LED fixture with twelve 3W Cree LEDs peaking at 450nm along with six 3W 6500K and six 3W 10000K LEDs to put over my mainly softy tank. About a year ago, just to test out if the blues alone would grow anything, I ran them with the whites turned off for about two months. I actually got really good growth, especially in my zoanthids. I see no reason why this would be incomprehensible, and why this concept shouldn't be used with plants as well.
funkman262 is offline  
Sponsored Links
post #17 of 17 (permalink) Old 01-11-2013, 04:47 AM
Planted Tank Enthusiast
Join Date: Mar 2010
Location: Queens, NY
Posts: 817
Originally Posted by Adam T View Post
If you google "grow light leds" you will notice they are mostly blue and red. Honestly in a two bulb fixture a red bulb like an aquaflora or power glo and an ati blue plus would probably do a great job growing plants, but the color rendering wouldnt be so great.
For the last week I have been running a 460nm actinic bulb and a red Flora Freshwater bulb, and while I don't like the color anywhere near as much as the flora/12k bulb set up I had originally, the plants seem to be responding well to it.
Bluek24a4 is offline  

Quick Reply

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


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

Email Address:


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