Ok my question is what kind of Sand can I buy that is alittle bit dark but not too dark and thats not light. I don't want playsand as its too light (neutral). I want to get my fishes colors much darker than usual. But I don't want to spend alot of money for bag of sand...Anyone know of a brand? Oh and it has to be fine or coarse...just a good a round kind of sand that won't harm my Stingray and I need to know where I can buy them...Thanks