Consequently, the use of hydroflux synthesis has resulted in the discovery of KBaMn V O4 and KSrMn V O4, which could not be achieved by any other approach. While the ability to select the nature of the Mn(V) oxide has been demonstrated by tuning the composition of hydrofluxes and of the reaction mixtures, the exact role of water has not been deciphered. More importantly, the possibility of using hydrofluxes to control crystal size and shape has never been questioned.