I don't feel like the information regarding the Blue and Pink High Flying Cotton CandishesBlue High Flying Cotton Candishes is correct. 

I have only cought the Blue Candish at night and the Pink Candish during the day. If you fish for these above 200 in Candoria, you'll be at cloud level. You'll notice that the clouds are pink during the day, and they are blue at night.

This is probably why a lot of people report not catching the Blue Candish as much.