I recently posted asking ways around buying expensive gravel and the most popular solution was sand. I want it to be a cichlid tank and i was told that they will love to move the sand around. Now i have questions about using the sand. Does it matter what kind i buy? Do i need to be careful using the sand with my filter? How do i prepare the sand for my tank b/c it seems it would be cloudy for weeks if i used sand? preciate all of the help thus far