I am really wanting to change my 55 gallon aquarium to sand and stack rocks. I have heard several different things and would like some opinions. There is play sand from home depot and lowes but a lot of people say thats terrible for your fish, and others say they use it. My local pet store also has aquarium sand, and they even have a certain type of sand made specifically for Africans (which is what I have) ...It is very expensive though. I would like to know everyones opinion on the sand. If I can just use regular playsand, what is the procedure for getting it cleaned and in the tank. How do I make sure it is clean of anything harmful for my fish. Also what color is good? And how long do I wait for the cloudiness and sand to settle before I can put my fish back in their tank? I would be really greatful if you guys could post some pics of your tanks that have sand and rocks stacked... I'd like to transition to something more natural that makes my fish feel more at home and helps their colors pop! Just looking for some ideas...Thanks everyone!