Custap

Custap is a type of Berry that can be planted in the Farm. It can be obtained by having at least one empty plot and at least 600 points of sweet on the field. The Watmel must be unlocked to unlock this berry.

Possible Planting Formations
WARNING: Trying to mutate Custap while having the Sprinklotad equipped may result in your Watmel mutating into Shuca.

You can fill your farm in the following way to obtain Custap berries. Purple squares indicate where mutations can occur.

In the Pinkan mutation option you can add 4 pinkan berries more to allow it to mutate when berries are still in bloom stage.