Depends what kind of corals you want to put in the aquarium....
Power head you can be fine with a 425
gph coralia nano, or 2x 240
gph coralia nano....
In my 29 I use to have 2x425 and a 240....
Lights, I had coralife t5ho 4 bulbs 2xactnic 2x10,000, but I realize that
led was a good change,for power consumption and because don't have to change the bulb every 8-10 months,and those t5ho are not so chip, better invest on some
led IMO
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