Nei I use rice water and after sometimes I see bugs crawling out and they lives in the soil even if watering my plants they won't die tht why I stop using rice water and if u said putting rice on the soil try them many yrs ago and its not good ..anyway thanks for the infor but will not follow ... as for eggs shell better to grind them into powder and mix with soil this way u will not see the shell on the soil as it will stay there look ugly.... using my method my plants look beautiful. Thank you 😊