If you're not planning to have corals it's more personal preference than anything else. I have a set of dual T5's HO on my fowlr tank and they are very nice and bright as far as I'm concerned. I think the shimmer effect usually comes from metal halides, they are a lot more expensive though and very bright, usually only on tanks with corals that require that high light intensity.
If you go with T5's you will probably want to have one actinic and one that's around 10,000K or thereabouts ("daylight") which will show off the colors to best effect.


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Also, do most metal halides come with moonlights, because a little night time viewing would be nice. Thanks so much for the replies.

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