| Im not sure about pioneer vs climax. Pioneer species are probably those more likely to propogate and grow in a fresh area in the wild to begin a new reef area. The climax species probably are more picky about environment and don't show up until the reef is better established. I would just start out with the hardier species and work your way up to the more challenging specimens. But not to say you couldn't thow a piece of anythign in and have it do fine. Mainly I think it is to experiment with some and be sure your parameters are steady and slowly increase the number of specimens (and along with that more food causing more bioload).
I am a very light feeder. Most would say not enough. I feed just a little zoplankton, frozen cyclops, or frozen plankton about twice a week. Plus seaweed for the tang. Right now I wrap a bit of nori and red seaweed on a broken plastic hanger and tape that to the tank edge. It takes the tang 2 or 3 days to finish that then I wait a day before adding more. | 
