Sunlight does its job perfectly

[rhaetuluscrenatus]

I have huge sunlight from window to the back of the tank and it's fun that the part of coral which received the sun directly has more colour and growing form to the direction to the sun, the more contact with the sun, the more coloured and growing up.

Here my whole tank to easy imagine:

Build Thread - 550 liters systerm SPS and LPS separately

Hello everyone, My name is Quang DO, I’m a reefer from Vietnam, since 2011, then decided to back to this hobbyist from 2022 but my tank actually set is from Jan 2023, so 19 months old now. My favorite on the reef is actually the researches about Acropora, that i did somes before, mostly...

www.reef2reef.com

https://www.reef2reef.com/threads/550-liters-systerm-sps-and-lps-separately.1065384/

 

[PharmrJohn]

Interesting. Usually, direct sunlight is a No No. Do you have algae issues?

 

[saltytanked]

Interesting. Usually, direct sunlight is a No No. Do you have algae issues?

That actually a common misconception. Sunlight is fantastic for reef tanks as long as water chemistry is in balance.

 

[rhaetuluscrenatus]

Interesting. Usually, direct sunlight is a No No. Do you have algae issues?

Yes i have valoria sp, but i don't think it is as issue due to the cohabitation during years,
If you think direct sunlight is not good, see this tank, TOTM 2012, corals are living under sunlight millions years ago before the creation of lighting fixture:

Adee’s reef is a sunlight driven beast from South Africa | Reef Builders | The Reef and Saltwater Aquarium Blog

Although we spend hours covering the latest lighting fixtures here on Reef Builders, nothing really comes close to actual sunlight. Adee’s aquarium is a 1340 L (355 G) reef, measuring 2oocm x 1oo cm x…

reefbuilders.com

And here is my tank under sunlight only

 

[Waters]

New issue of Coral magazine actually spotlights a tank lit by nothing but sunlight.

 

[Gumbies R Us]

https://www.reef2reef.com/ams/reef-...c-sunlit-reef-a-living-memorial-to-kelly.885/ This is a tank that is done with no lights, just the sun instead. Met the guy who has this tank, super nice guy.

 

[Rjukan]

https://www.reef2reef.com/ams/reef-...c-sunlit-reef-a-living-memorial-to-kelly.885/ This is a tank that is done with no lights, just the sun instead. Met the guy who has this tank, super nice guy.

I love that tank. Bittersweet story, and I respect the heck out of Joe. Awesome guy, and equally awesome tank. So cool you got to meet him.