Too much light??

[kipsix]

Is there such a thing as too much light? Can you actually give corals too much light?

[Rbacchiega]

Depending on the type of coral, yes. That's when you get into considering where in your tank you need to put the coral for it's lighting requirements ie, at the bottom, in the shade of some live rock etc.

[tang daddy]

you can cook any soft coral with too much light, even sps believe it or not....

It's called bleaching I have lost a few nice yuma's this way burnt a few species of sps like monti and deepwater.

[lorenz0]

i have bleached out a yuma from to much light. but it all depends on the coral. i know some of my mushrooms weren't to fond of my light upgrades and i had to have most of the bulbs turned off to aclimate them properly

[StirCrazy]

if you acclimate the coral to the new light properly, then no there is not such a thing as to much light, no matter what we do we will never come close to what the sun lays down on a reef.

If you bleach a coral don't throw it out as it will come back, but if you have proper water flow and use proper techniques to introduce your new light then you won't have a problem.

Steve

[Canadian]

Yes there is such a thing as "too much light." It is species dependent however. Photoinhibition is possible and varies dependent on the species of coral/zooxanthellae being investigated - essentially blasting corals with tons of light can be a waste of hydro. But excessive lighting can also produce some unique effects so "too much light" is a relative term depending upon your goals (growth, fluorescence, etc.)

Read here:

http://www.advancedaquarist.com/2007/3/aafeature1

[Myka]

Agreed. No such thing as too much light, just poor acclimation practises.

Originally Posted by StirCrazy

if you acclimate the coral to the new light properly, then no there is not such a thing as to much light, no matter what we do we will never come close to what the sun lays down on a reef.

If you bleach a coral don't throw it out as it will come back, but if you have proper water flow and use proper techniques to introduce your new light then you won't have a problem.

Steve

[StirCrazy]

Originally Posted by tang daddy

you can cook any soft coral with too much light, even sps believe it or not....

It's called bleaching I have lost a few nice yuma's this way burnt a few species of sps like monti and deepwater.

I hope you didn't throw them out from just being bleached, they come back from that.

Steve