# What blue light actually does to corals

**URL:** <https://community.reefnbid.com/t/what-blue-light-actually-does-to-corals/163>\
**Category:** Kenny Lin\
**Tags:** tips, lighting\
**Created:** [August 13, 2026, 4:22am UTC](https://community.reefnbid.com/t/what-blue-light-actually-does-to-corals/163 "2026-08-13T04:22:08Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![KennyL](https://yyz2.discourse-cdn.com/flex028/user_avatar/community.reefnbid.com/kennyl/32/91_2.png) [@KennyL](https://community.reefnbid.com/u/KennyL)\
**Post date:** [August 20, 2026, 1:37pm UTC](https://community.reefnbid.com/t/what-blue-light-actually-does-to-corals/163/2 "2026-08-20T13:37:58Z")

</div>

An interesting follow up on understanding light wavelength.

[![](https://canada1.discourse-cdn.com/flex028/uploads/reefnbid/original/1X/4374360d3c752804f42e64bf064915ca4f127ae4.jpeg "Neil’s Most Important Explainer Ever") ](https://www.youtube.com/watch?v=ZTAQVrQH9F4)

---

_[View the full topic](https://community.reefnbid.com/t/what-blue-light-actually-does-to-corals/163)._