How much is too much Moonlight?

[MadManMac]

I am currently using a 13 watt actinic for a moonlight. Since I have nothing but rock and sand in the tank I do not think I can hurt anything. My tank is a 40 wide by 16 deep by 22 tall. Is this too much or is it totally unacceptable to use this for a moonlight? Any advice would be appreciated.

If it is True Actinic, it is prolly not too bright... I would say more than an LED moonlight but the size tank you have it on seems quite large for a 13 watt bulb so, I think it would be fine..


Deleted duplicate post - timbo2