substrate

[icecube]

can live rock(consisting of only coralline algae) be crushed and used as a substrate?

 

[Pufferpunk]

Why would you bother, when you can just use sand?

 

[icecube]

i dont get sea sand (LS) here,i just use coral sand but wanted to know if this can be used as well.

 

[Pufferpunk]

You can just buy playsand from Home Depot & seed it with a handful of live sand or just from live rock. Be sure though to rinse, rinse, rinse & then add filter floss to clear up the rest of the cloudiness in the tank, after you fill it.

 

[spotfin]

You'd be better off buying live sand, or dry sand for marine tanks (aragonite based) and seeding it with a little bit of live sand. Crushing live rock into sand will be expensive and labor intensive for the amount of sand you will get.