Yes, both metal halide and LED lights will create the ripple shimmering effect.
For a 3ft tank (assuming the height is the standard 45cm type) and growing low-lying carpet plants with Co2 injection + fert dosing, you can look at those LED light sets that use individual 3W LEDs, here are some links to brands and models that have been tried and tested so far:
Odyssea EVO LED 36" 72W (Plant)
http://www.eastoceansg.com/odyssea-e...ant-p-821.html
or if you have more budget...
MaxSpect Razor 160W
http://delightings.com/index.cfm?GPID=111
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