Help with revamped nano

[marco333]

After 4 years of a CC substrate, my tank went crazy and started with alge blooms and bad parameters. I switched to about 2 inches of live sand, and everything seems to be much better. The question is what type of inverts should i now get that will benifiet my sand bed. Do I need creatures that crawl through the sand, or am I ok with just having astrea snails and hermits?
Thanx

 

[granny]

Astrea snails are terrific they stir the sand and eat detritus.
Two inches isnt quite deep enough for some of the bigger sand sifters, but you could add a sand sifting starfish. How large is your tank and what occupants are in there now?

 

[marco333]

Its only a 10g tank so starfish wouldn't be a good fit. I've also heard that sandsifter starfish eat good stuff in the sandbed so they are not good for it. How about conches? I've heard they are good with sandbeds.