Sorry if my DFWMAS lingo is sub par, but here's my question. I have a 20 gallon tank, 24" in length. I'm interested in doing a reef tank with softies. This is my first time to start a tank so I'm very limited on what I know. How many watts do I need? I've seen all different sizes and the prices can really top out high. I went to a LFS and asked the question and was told 5 watts per gallon. When she showed me a beginner set up she had, it was a 34 gallon tank with a 50 watt light?? I'm not looking to spend a lot, no more than 60 dollars if that doesn't sound ridiculous. Maybe later, if my hobby and skills excel, then I'll probably upgrade. Thanks to all who can help, this site is great so far!!!