I've been researching for days. I can't decide. I want black because it gives a great contrast to every other color. I also want tan or natural sand color because cleaning black substrate is a pain without a lot of light. I've heard PFS (pool filter sand) is easier to vaccuum/clean than traditional sands, due to it not "kicking up" as easily. Is this true? What about Black Diamond Blasting Sand? Do the two compare? Is the generic, 'traditional' Petco Sand just as good? I want something that won't fly all over as a cory or a vacuum glides over. Thanks! Post pics if you have them. I've seen a ton, but there's close to no such thing as too many pictures when deciding on something like this.