They can not.
Blacklights do not produce the correct spectrum of light to grow plants.
The only lights that currently produce the required color spectrum of light to grow plants are the following;
Suitable for Growing:
Flourescent (Tube shaped)
(a flourescent tube with ballast included that screws into regular light fixture)
Metal Halide (MH) Best for Vegetative growth, but it doesn't contain all of the spectrum needed later during flowering for truly outstanding buds. the light shines a blueish/white color
High Pressure Sodium (HPS) Best for Flowering. Ok for Vegetative. shines a yellow/orange color. All can be purchased at your local home/lumber store.
Not suitable for growing:
Blacklight type flourescent lights.
ANY incandescent lamp
(if it screws into a regular lamp, it won't produce worthwhile buds). Exception, compact flouro mentioned above)
Author: Smokey D Dope
one more thing for moon light, (I dabbled in Photography), The Light from the moon is Reflected Light, not direct light like the sun.Simulate moonlight? The only reason that the moon doesn't screw up the flowering cycle is that it doesn't reflect enough of the sun's light to be noticed.
The plants would do perfectly fine without any moonlight whatsoever.
I'll leave the tide-affects discussion to a plant biologist lol, but you know what I mean.
The only reason I can think of to have any light at all during the dark cycle would be if you are forced to work in your garden at that time. And in that event, you would want something in the green spectrum that the plants wouldn't notice (but don't ask me to recommend any particular type, I do not know exactly what range of "green" the plants don't use and it would be a real bummer to be off by just enough to cause problems).