Quote:
Originally Posted by MHG
A few weeks ago, I noticed some bleaching in my lps corals so I cut back the light... Now I have zero growth so I am assuming my slow growth issue has been light related. As I slowly crank them back up we will see I guess...
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Light is a touchy thing and sometimes hard to balance. The key is that they enough of the frequencies they need without going overboard expecialy on the frequencies that are detrimental to them.
you could say there needs can be calculated by intensity times duration. However if intensity is laclking you cannot make up for it by going over 16 hours of light since they need there dark time as well. Simularly if intensity is too great it will burn them in a short period of time.
If they need an ideal 1,000 units of light every day you can go with 125 units for 8 hours or you can go with 65 uniots of light over 16 hours. but if you give them more than 16 hours of light or less than 8 you realu get a negative response since they cannot adjust to that drastic of a balance in there cycle.