I have been doing skulls for years. I used to have a large inventory of Aqueon and tetra heaters that I could easily get to 115 ish. From memory they modified the Tetras a few years back and they wont do that anymore. Every now and again I can still find an old style Aqueon but they are getting harder and harder to find. The newer black style Aqueon will not adjust will they? Any other heaters out there that can be modified that I dont know about? Other solutions? Seawolf???? Thanks!