Depends on the size of the 29, but I used to have a 29 Biocube and I kept corals with the stock PC lighting. I later added LED strips, but that was for color and preference, not necessity. Basically it depends on what you are going to want to keep and what lighting you in general would prefer. Personally I love T5s and am trying out LEDs. Your budget will play a role in what you can/want to do for sure.