Hey guys, I have a 20 Long I was thinking of setting up with a pair of clowns and a anemone. I was thinking a 4 bulb retro hood, an Aquaclear 30 HOB filter, and a powerhead or two and I'm good on equipment? Then a pair of osc., and maybe a yellow watchman goby or something. What do you guys think? Sorry, I'm sure this is a vague/noob style question, but I'm just curious, lol.