Has anybody got close to completing this? After many, many attempts I have yet to even create 25 yellow candies let alone clear them, even using lucky candy boosters. It might be possible if:
a) fish always hit yellow candy or its precursor (the more created the less likely they are to be actually useful!)
b) coconut wheels were available
But in the present configuration I cannot see any way it is mathematically possible to generate the number of hits necessary to convert and then clear the required candies. It would take a minimum of four 2 x coloured bomb combos, unlikely on any level but especially so on this where the chances of raising colour bombs has been deliberately reduced.