is this true? can i dye sand and save a ton of money trying to fill my 100 gallon - with black sand by dye'n it?
Dye sand? How would you dye it? You want natural sand and NO DYE. Real black sand is volcanic sand.
You can buy back sand from Marine Depot, so I'm sure you can get it some other places. I don't think dye in a salt tank would be a good idea.
How do u think they turn it certain colors in the store? I dont think pink sand is something natural