blue cold cathodes as lighting?

[Malt_Vinegar]

I have some cold cathodes lying about doing nothing, and want to rig them up as lighting for some of my unlit betta tanks. They emit a very strong blue light, much stronger than a neon. They dont get very got at all and run off an interver from a twelve volt supply. Im hoping for some cool looking tanks! What do you lot think?

 

[Lateral Line]

Such an odd coloured light is likely to make your fish seem odd colours, no use for plants of course, wrong spectrum, but otherwise I don't see a problem.