How much Light is the correct amount of light?

[necrio]

So, its been a few months since I setup my favorite tank. Its a biocube 29 with a reefbreeders nano lite light. I cut out the PC lights for a small window for the RB lite.


So, I have had it at I guess 40% for most of its life, but I increased the blues to 55% and maybe white/others to 45%.

But, how to tell what is too much/not enough?

I have growth in both situations, can't really tell which is faster or better.


Mixed reef.

[jedimasterben]

Are your corals shrinking, bleaching, or dying? If not, then it's not too much light. They'll tell you when they've had enough

[hey]

Are your corals shrinking, bleaching, or dying? If not, then it's not too much light. They'll tell you when they've had enough

 

Yep, mine decided 12 inches above the water line for a 250w halide was too much, moved it up to 18 and the tank is happier and hell cooler to boot. Sometimes its easier to move a single coral than to broadly adjust your light aswell, its a judgement call rly.

[stealshot]

I had the same question as we'll. thanks for the explanation.