Thanks jasmine nights, I'm in Brisbane, so I assume similar climate to somewhere in south Florida. Humid sub-tropics.
mine seemed to like infrequent, deep watering, which mirrors the storms we get here. Feeding was organic and the schedule was the same as with my other citrus, just lighter.
Some trees suffer from branch die-back when it is too wet, but otherwise it is usually pretty tough. There seem to be a number of different growth habits - mine grew very long branches that grew quickly and drooped, requiring tying together and staking to keep the barbs out of the way. Many are much slower and more dense. Position was full sun on a northern slope. There is a weedy golden penda in the photo that grew over the plant at times, but didnt block much sun. Again, some plants like full sun, others like deep shade.
Sorry I cant be of too much help, but I hope to visit a finger lime farm in a few weeks and can pass on a few tips.