Cornstar
Aquarium Advice FINatic
Coursair said:You can also use Black Diamond Sand Blasting Sand.
My favorite is CaribSea Tahitian Moon Sand, but it's pricier. Got mine on sale at Petsmart.
I also like the Carib TMS, I bought mine from Dr Fosters for $20 for 20lbs. I dont drive so the free shipping was worth the extra bucks.
But if you're on a budget, I seriously recommend PFS and as above has mentioned, blasting sand.