Best 2 color t5s with LEDs

[120reefermadnes]

Which 2 t5s should I use to add spectrum that my blue and white leds don't have.
I have ecorays and AI sol blues. I just think I'm missing those reds, purples, greens maybe?
So I'm planing on put a 2 bulb t5 Retro kit with my leds but not sure which two color and brand bulbs I should use, I'm thinking that I don't want either to be blue or white. But all input is welcome from those that have done similar set ups with similar leds. Thank you all

[chris88]

Your missing red and 420 blue. Fiji purples and maybe an actinic.

[120reefermadnes]

Thanks, I was thinking about the figi purple but wasn't sure. Does the figi purple have red in it?

[120reefermadnes]

Ive heard that actinic bulbs realy serve no purpose as far as coral growth, but only brings out the floresents in the coral(which isn't really a bad thing I guess because the leds will cover the growth part)
But is this true?

[greg1786]

I'm actually very interested in the answer to your last question myself. I have done a ton of research over the last four or five months because I too was buying a dual t5ho fixture. I bought mine about two months ago or so and from all the info I gathered I am under the assumption that the blue light is very important. most people reccomend as high a kelvin as possible like 14000k. and if I've read correctly the higher the kelvin the more blue part of the spectrum is in it. the actinic420 is important to the growth of zooxanthellae. in the ocean most of the reds are filtered out by the water before the light ever reaches the reef. the corals still get some of the red light but as a result of the light being filtered out the corals have evolved to rely heavily on the lower end of the light spectrum to grow their zooaxnthellae which is different than chlorophyl which is used by land plants as they have full access to the suns light spectrum.I do know zooaxnthellae,though a different type of cell than chlorophyl, still is a photosynthetic algae like clorophyl they just have different needs in amount of specific ratios of the color spectrum they use. there is a good thread by reeferbatman called my overall theory of light(information heavy).which better explains this in grave detail. please someone with a better knowledge of this chime in and help me out. if I'm wrong please feel free to let me know because now I'm questioning everything I've thought about the light spectrum in relationship to coral growths after reading the above statement about actinic420 having no photosynthetic value. also I would never want to give someone the wrong information if I'm not 100% positive I'm right. look forward to the response thanks


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[rtparty]

A Fiji purple and pure actinic is what I would use. It is true that actinic doesn't do a ton for growth but it helps. It is also the most missed spectrum by your LEDs.

You may not love the color though with the Fiji purple in there. May want to grab a coral plus as well. It has a small spike in the red.

Sent from my SCH-I535 using Tapatalk 2

[chris88]

Chlorophyll peaks at 420nm actinic peaks at 420nm lol. It is the most important light spectrum. Actinic bulbs do not push a ton of par but it you have LEDs you are fine for par you just need to fill in the gaps. Fiji purple or purple plus does had a good ammount of red in there spectrum which is also a big spike for chlorophyll. Go with either Fiji and an actinic or a Fiji and a blue plus.

[120reefermadnes]

Thanks sounds like I will go with an actinic and a Fiji purple

[120reefermadnes]

Thanks sounds like I will go with an actinic and a Fiji purple