Sounds good Ellie.
Rinsing sand several times until you get clear water is a good start, might get cloudy water for a day until all settles.
What might help is putting a bowl or saucer on sand and pouring water in onto the bowl or saucer will help not to distrupt the sand while adding water.
Attaching java ferns or any plants to rocks, wood or decor can simply be done using thread, fishing line or even glueing to surface will also be fine. As long as roots not completely covered in glue.
Also, as long as glue is 100% cyanoacrylate that will be fine to use in tanks.
Have fun and posts pics
Rinsing sand several times until you get clear water is a good start, might get cloudy water for a day until all settles.
What might help is putting a bowl or saucer on sand and pouring water in onto the bowl or saucer will help not to distrupt the sand while adding water.
Attaching java ferns or any plants to rocks, wood or decor can simply be done using thread, fishing line or even glueing to surface will also be fine. As long as roots not completely covered in glue.
Also, as long as glue is 100% cyanoacrylate that will be fine to use in tanks.
Have fun and posts pics