Nourhan22
Aquarium Advice Newbie
Hello! I found these beautiful rocks on etsy. The seller claims they are sandstones but others have told on other forums that some are not in fact sandstone. Can I please get id's for these rocks. They are two different sets. Thank you! I would also like to know if this is in fact sandstone, is it safe to use for aquariums? I jave heard mixed reviews on this and would like to get a different opinion.