Hey everyone! I just joined

. My family has ALWAYS had fish tanks in our house. We used to have a 40 gallon community tank, and now my dad has a 75 gallon cichlid tankin his office. This is my first tank setup on my own, and I'd love some pointers

. My ideas were to do a dark sand, maybe something like the tahitian moon? Also, a variety of cichlids in the tank. Does anyone have any info about different sands I can try? Also, can I use something like Texas Holey Rock in a freshwater tank? What would be a good filter to use for a tank with sand? Any and all info you guys have would be GREATLY appreciated! I will be getting the tank in the next couple of weeks and starting my new hobby right away, I'm so excited and I will DEFINITELY get pictures up as soon it's ready to go

, so PLEASE help me out here! thanks guys!!!
~John