The friendliest place on the web for anyone with an interest in aquariums or fish keeping!
If you have answers, please help by responding to the unanswered posts.
With inert substrates you will need to use plant tabs for those you root. You can put java fern and anubia in the gravel BUT only bury the roots, you have to keep the Rhizome above the substrate. Or you can tie with onto DW or even rocks using cotton thread or fishing line.