24 times 12 sup 3 vs 16 times 8 sup 3 lattices: Controlling finite-size effects in lattice SU(2) including fermions

We report on the hadron spectrum, chiral-symmetry parameters, and the interquark potential of two-color SU(2) including dynamical Kogut-Susskind fermions. By comparing the results on a 24\ifmmode\times\else\texttimes\fi{}${12}^{3}$ with those on a 16\ifmmode\times\else\texttimes\fi{}${8}^{3}$ lattice, we demonstrate that finite-size effects are small in a range of couplings where approximate scaling is observed.