Hi, a short while ago I got some riccia from hellohefalump (t hanks again!) and I kept it floating to grow for a while. In the meantime I had 'flu so the tank got put on the back burner for a while. Needless to say,the riccia is a substantial mass now and more than I can use at present. Is there any way I can keep it for future use without floating it as it is really annoying watching it getting blasted around the tank!