Red light good or bad study

[Superlightman]

Hello,
I'm a bit loosen if I should use red light or not.
This study seems to show it is bad :https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0092781
But I also read some post saying, it is good and halides have also good portion red light inside and produce good results? Also I listen than Sanjay for example on his radions runs all channels with 100% with very good results?
Maybe it also depends how much red, because in this study it was probably a lot of red and if I show the ration red vs blue in our leds it is very small, even at 100% it should do nothing?
For example if I look the commercial spectrum of the radion the show on their website, it seems ideal with all channels on, so why people run mainly blue with not white green and red, that would result in a completely different spectrum wich is far from optimum and from what we find on the reefs ?

 

[blaxsun]

I like the red in my Radions. It brings out some of the fluorescents in my fish and corals.

 

[kzenoni]

I’m very interested in the answers. I’ve got a 350 gallon with 5 xr30 on it running reds and greens at 25% . I would love to run them higher but had the understanding that they are bad. From what I’ve learned is they produce algae growth.

 

[sfin52]

Red and a bit of purple brings out different colors. I noticed with out red and purple lights my red corals looked more brown.

 

[blaxsun]

I’m very interested in the answers. I’ve got a 350 gallon with 5 xr30 on it running reds and greens at 25% . I would love to run them higher but had the understanding that they are bad. From what I’ve learned is they produce algae growth.

Yes, but out of 102 LEDs on a G5 Blue - only 2 are photo red. That’s a pretty small number of red LEDs... I think I’m running my reds @35% for maybe 6 hours a day tops, and that’s further reduced by my schedule intensity of 65%.

 

[Superlightman]

Actually I'm trying to run all channel at 100% included red. As they are only a few reds and I run my xr30 at 35% (wich intensity you run the Xr15 and xr30 guys?) it should not be a lot of trouble. I also switched my t5 coral blue for aquablue special(not sure wich of the two is the best but the aquablue should be more full spectrum ? ) . I want to mimic during 6 h the spectrum of halides. In the past the best colors was made with 6500k halides by a lot of farmers and then out under blue for sell. May be we can replicate this with led with all channel at 100% 6hours and the rest of time blues?

 

[alton]

I run my XR15 G5 using the PHX14 setting. I am guessing ecotech is trying to mimic a Phoenix 14K MH lamp? Not sure but it works well with three on my 120 set at 50%. Most that used MH lamps used Radium 20K or Phoenix 14K . Both looked the same and had the same PAR output. I only knew of one place that used Iwasaki 6500 400w MH lamps and that was because they could hang the fixture 3' up and still cover one grow out tank that was 4' x 4'. Todays high dollar colors require LEDs.

 

[Superlightman]

I run my XR15 G5 using the PHX14 setting. I am guessing ecotech is trying to mimic a Phoenix 14K MH lamp? Not sure but it works well with three on my 120 set at 50%. Most that used MH lamps used Radium 20K or Phoenix 14K . Both looked the same and had the same PAR output. I only knew of one place that used Iwasaki 6500 400w MH lamps and that was because they could hang the fixture 3' up and still cover one grow out tank that was 4' x 4'. Todays high dollar colors require LEDs.

I run my xr15 at 70% . I not think the phx mode mimic really the halides ,I think the different mode are just marketing because if you check the settings of the different modes there is just a very small change between them, I think it changes absolutely nothing compared to the Ab+

 

[alton]

Not sure if you have seen this?

https://ecotechmarine.com/wp-content/uploads/2016/07/ReefWholesale_CoralLab.pdf

Buildmyled did the same many years ago with their leds by copying the radium 20K

 

[Superlightman]

Not sure if you have seen this?

https://ecotechmarine.com/wp-content/uploads/2016/07/ReefWholesale_CoralLab.pdf

Buildmyled did the same many years ago with their leds by copying the radium 20K

this document confirmed what I said the only difference between ab+ and the phx is that the green are 24 % vs 17% and red 24% vs 30%, so that mean near no difference at all, impossible this small change is same as the halides.

 

[Superlightman]

we also have an interesting discussion about spectrum here:

T5 question for lighting experts - coral coloration and growth; not "look"

Thanks! When I tested with just one Coral Plus, it did make it a lot whiter with just the one bulb, so I imagine the daylight will do even more. But yeah, it's true that the LEDs will cancel a bit of that out! Just curious... If you run only Actinic and Blue Plus, why are you suggesting a 6500k...

www.reef2reef.com