to level suff you need essences... thats mandatory.
maybe he heard something different. if you have a t2 fish and a t2 essence and you start suffing and cancel it right away. you get your fish back, you lose the essence and get exp.
thats how I leveled to lvl 11, without doing any suffing, just with cancel button... but is not worth it long run as you need lots of essences.
This post was edited by obob_ro on Jul 3 2018 11:56pm