weighting down Riccia
I was reading a thread on weighting down Riccia. They were using 3/16 stainless steel rod bent with a small jig. Having never used Riccia, do the weights then just sit on top of the Riccia? I assume then the Riccia grows and covers up the weights? OR are the weights just used until the Riccia anchors itself or does it ever do that?
OR, since I just read elswhere that Riccia doesn't anchor itself ever, maybe I could take out some of the gravel and top it with sand (which I used on the left side) and just put the Riccia over the sand?