  We study dualities for ${\cal N}=2$ 3d Chern-Simons matter theories with
gauge groups U/Sp/O, matter in the two-index tensor representations
(adjoint/symmetric/antisymmetric) in addition to the fundamental
representation, and a superpotential. These dualities are analogous to
Kutasov-Schwimmer-Seiberg dualities in 4d. We test them by computing the
superconformal index and the partition function on $S^3$ for many dual pairs
and find perfect agreement. In some cases we find a simple dual description for
theories with tensor matter and no superpotential, thereby generalizing the
"Duality Appetizer" of Jafferis and Yin to an infinite class of theories. We
also investigate nonperturbative truncation of the chiral ring proposed in the
context of 4d dualities.
