700-800nm Red LEDs. What's the TRUTH?

[ZoWhat]

I don't have the patience to read thru scientific articles studies where 90% of the test results are over my head.

All my LED fixture has two red LEDs in each fixture . I assume it's in the 700-800nm range. I do understand nm wavelengths.

Two opposite opinions I'm reading:

1) "Red LEDs only grow green hair algae in your tank....so they're BAD. DONT TRUST THEM!!!"

2) Many LED mfgrs say "the 700-800nm red wavelength is CRUCIAL to coral photosynthesis. USE THEM!!!"

Let's talk about the Pros and Cons

 

[ZoWhat]

Hello???

 

[TexasTodd]

Might post in the lighting forum. It's a good question I've wondered about too.

 

[BoomCorals]

https://www.reef2reef.com/threads/red-light-good-or-bad-for-corals.333157/

 

[DancingShark]

I can only speak from personal observation. I have a red led grow light in my sump. It grows algea down there like crazy. I mean all types of algea. I turned that one off and ran florescent and they all wither away in weeks. I still have red led on my DT but they aren't growing hair algea.