It will work for some corals, there are very hearty, low-light, low-maintainence soft corals. I have several, a Christmas Tree coral, yellow polyp, and a few 'shrooms (green and assorted). Although I will be getting a higher wattage bulb, I currently only have 30 watts, and the corals do fine. The Christmas Tree coral does not have the algae others do, thats why it has to be fed. It is placed at the bottom, in the sand, and is perfectly fine. I have the 2 'shrooms placed in the middle of the tank, and the yellow polyp is placed towards the top.
These are SO hearty, that several times I thought the Christmas Tree was dead, only to grow back hours later. What happens is it grows full, then shrinks at night, then grows back lol. It does what it wants, when it wants lol. It's pretty cool.
Brine shrimp are good, and I will be using cyclop-eeze powder to feed em too.