Does anyone know the temperature at which silicone cement begins to break down? Could we use an autoclave to kill ostracod eggs in aquariums? Are there any solvents which would attack the jelly which protects ostracod eggs? -- Steve Pushak Vancouver, BC, CANADA Visit "Steve's Aquatic Page" http://home.infinet.net/teban/ for LOTS of pics, tips and links for aquatic gardening!!!