So hello everyone I am new to this site but am a FISH love. I have had many tanks over the years and now that I am old enough I can buy bigger ones and make them how I want them. I currently have 2 55-gallon tanks and I am soon going to be building a 55,75 or 90 gallong lake malawi cichlid tank. I have had cichlids before but when I was younger and before I got into the natural looking aquariums. I know alot of the tanks have sand substrate but does anyone have any specifics about a kind? I see alot of different kind of rocks in the tanks as well but what kind exactly are they and does anyone know where a good place to pick some up at is? I know there is normally little woodwork or driftwood in these tanks from what i'v seen. I also see some tank background that aren't just paper on the back of the tank, they are actually pop out rocks I imagine fake. I saw one at a pet store near me and I dont remember what they said they were made out of but they said they didn't sell them anymore. Also any other hints tips decorating and anything you think I should know I will take heed to! Thank you very much to all!!!