I really want to change powerheads as I have had numerous problems with my korilias, I have had many many caps break and then end up ruining the whole unit. I have had tk email them multiple times a month and I am fed up so I am thinking of Tunze or Vortechs.... I have heard great things about both but don't know what to get.....it seems to be about the same price for both when you factor in the wave controller on the tunze. What is your opinion? Either a mp10 and an mp40 or 2 tunze 6055 and a wave maker controller.