ILuvTropicalFish
Fish Fanatic
I have read that live sand is probably not so "live". That makes sense. So I know I saw it somewhere here, but what kind of sand do I want to get?
I have a 125 gal with a live sand bed that has been running 1 1/2 years and I am building a refugium. I want to put a deep sand bed in it. I know that play sand could have silicates in it. But it seems someone posted something about builders sand? Please advise. Thanks. 
I have a 125 gal with a live sand bed that has been running 1 1/2 years and I am building a refugium. I want to put a deep sand bed in it. I know that play sand could have silicates in it. But it seems someone posted something about builders sand? Please advise. Thanks. 
![Tiny white/grey dots and patches [livebearers]](https://www.fishforums.net/data/files/featured_images/69/featuredimages_b8ef549ab3fc55cf.webp)






