Refugium lighting


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I recently installed a refugium and was wondering whether the light I fitted in would be adequate enough. I have added a little bit of grape caulerpa as well as some purple/ pink macro algae. I've attached a pic of the five as it is currently . The light I have currently is a Chinese sunsun led unit, the sa600. Will it be good enough or will I need some more lighting? Dimensions of fuge are 500x500 x 600 high. Lights are running 24/7 . The light also has 3 settings, red and blue lights, only white lights , or a mixture of all. Currently I am running a mixtire of all and switch to the red and blue at night.
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Here is a pic of the red and blue lights when they are switched on without the white lights
 
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Pic doesn't want to post but would the extra red and blue be more beneficial for the growth of algae as opposed to the addition of the white light, which drowns out most of the red and blue
 
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I know those led lights! It will work fine for refugium. The red and blue spectrum will help grow better. Only thing with those lights is the switch! Need to physically switch on every time and then get it on the right setting. Becomes a problem if it has been load shedding and you are away. I have not opened it up, but you could most prob bypass the switch and have it on all the time.
 
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I agree with Marius! Although a 30w LED would be enough on that small refugium. The reason I say your sunsun would work is because I am running a refugium on a sunsun and another under a led 30w spot light. I am going to replace sunsun later. Not because it is not good enough. Because I dont like the switch.
 
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Ok thanks guys, the switch is not a problem for me as my tank is connected to an invertor so the lights don't go off when there is load shedding. Should I leave the red and blue ones on 24/7 or would it be better to alternate between the settings during day/ night. Will have a look at adding a floodlight as well if the sunsun I bought isn't producing results
 
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