DotStar Micro LED Strip individual capacitor need and PCB questions
Decoupling is more of an artform or black magic. It's a skill learned though trial and error. Adafruit is recommending 220 ųF after testing, as a us based hobbyist reseller interested in the least number of complaints/returns for bad products (i.e. they have a vested interest in making sure the product works as stated). The difference being that this fairly small compact board is different from a long flexible printed circuit board, and the capacitance required will be different due to the dimensions of the board and how much copper is used. FPC, especially over a few feet, is fairly poor in its characteristics, high resistance and inductance compared to a small dimension square copper clad fr4 board. 

For your use you could put a bigger capacitor on a short wire close to the board to make it easier to place.
Just keep in mind, the longer the wire the worse it will perform. An inch wouldn't affect it much, while allowing you some leeway in hiding it. 1000ųF 2 inches away would work fairly good imho.