<a href=showthread.php?s=&postid=6707461#post6707461 target=_blank>Originally posted</a> by sequential
1) How do you replace the top level of sand without creating a huge mess, especially considering obstacles like inverts, clean up critters, LR, and such? My first guess is to remove everything, lay down the sand, let settle, rebuild, but that seems quite disruptive.
2) How much sand is being replaced? 1/4"? 1"?
3) What kind of sand should be added for live sand? More live sand or is some inert sand okay to add on top?
(Hope these are helpful questions and not seen as disruptive.)