I'm not sure if you've ever had playsand as a substrate before so I'll just warn you. Playsand is a nice cheap way to make your aquarium look unique, but there is a downside to it. It shows debris no matter how much you clean it. It also takes a while to settle when doing setup, cleaning, and water changes. I rinsed my playsand about 20 times per half bag and still have problems with it getting stired up. I would recommend using Eco-Complete or a similar substrate if you're looking for a soft bottom. For a 10 gallon tank, 1 20lb bag of Eco-Complete is enough. The cost is around $20 and it doesn't show debris nearly as bad as playsand.