Yep, just like NursePlaty said. Since you aren't growing plants you don't need expensive lighting. Just get something that fits your tank and isn't ugly to look at. Dr. Foster and Smith has some decent prices. They did bump thier shipping from $5 flat rate to $8.99 though which pissed me off.

You just need a light that fits across your tank and then any bulb with do. Different bulbs will change how "bright" you tank looks though. Do you want moon lights (lunar lights)? They are kinda cool to have. Moon lights allow you do see your fish moving around at night. They don't have any effect on the fish.

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