Will this work for upgrading my tank?

[Salt in Texas]

I will be adding 120lbs of new sand along with my sand from the 20g

Click here

 

[The Aquatic Arsenal]

If you use the old sand, I would recommend rinsing it out really good.

 

[TopShelfAquatics Verified Sponsor]

I would not recommend old sand. No matter how hard you try to clean it it'll still have stuff in it and if you try too hard you're gonna kill the previously existing biologicals in it