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Are there strong currents? That depends on where and when you dive, right? Even around a small island like Layang2 you will be able to find both strong currents and bathtub currents.
It's also wall diving so you can stay as shallow as you like. The hammerheads that Layang2 is famous for are usually found deeper though. If you interest is solely to see them, plan on going deeper (to 40m and looking down) or getting lucky.
I am AOW, only have about 80 dives and have dived to 30m only.