Light for 9g Fluval Flex

[hllb]

I am considering setting up my Fluval Flex 9g as a frag tank. I have a couple of corals that I have to frag frequently and have no good spot to let them heal LOL. I am looking at lights. Since I'm building a new tank, I'd like to keep this as economical as possible. Below are lights I'm considering

Fluval Sea Nano (20W): cheaper light, probably sufficient for this size tank
Kessil A80: decent price, probably sufficient for this size tank
AI Prime HD: more expensive than I'd like and probably overkill for this tank

Other lights to consider? Any experience with these lights on that size tank?

 

[LiveFreeAndReef]

Fluval Nano would work great, I have one over a 10 gallon and all my corals and my anemone as doing great. I also have a Fluval Flex 15 that has a Aquaknight A029 over it, that light is much more powerful than the Fluval, but doesnt have all the fancy bluetooth stuff like sunrise/sunset. They're on Amazon for around $65