UV LED over tank

[sphelps]

Jaws I think if you're considering violet LEDs or whatever you want to call them then you should also consider Blue and even cyan. Personally I'd take the number you have in mind for RB and split it up. Consider an equal amount of violet, RB and blue and then probably half the amount of blue for cyan. for example with 144 RB leds, consider instead 48 violet, 48RB, 48 Blue and 24 cyan. This will also decrease the amount of white you need.