The core mechanics of fishing on Cyntara do not differ from the vanilla functionality. You still need either a Fishing Rod or a Mechanical Fishing Rod and Worms to fish.
So what's different you mask ask and why does fishing warrant its own guide page?
First of all, fishing on Cyntara will grant you levels if you are around a PvP level treshold.
Additionally, aside from regular fish, you have a chance to catch exotic fish and jewelry which can be sold to NPC Jason. If you are low on cash it's a good way to get back on track.