adding to my sandbed???

[reefwars]

hey all i am wanting to make my sandbed in my 110 mixed reef tank bigger i was thinking the 1" was going to be fine but now im wanting more im looking for some do's and dont's??? ill be using new sand havent picked any out yet and just adding a bit here and there i read somewhere that you can use a long piece of pvc to drop sand in so it doesnt cloud your system any thoughts??? anyharm in adding to my sand bed considering its loaded with fish and corals lps and softies???? thanks