Right, Bored of my old tank, it was set up before I discovered the power of aquascaping so the substrate is sand, just plain sand So, I can't move my fish so I need to plant and scape around them, what are my options for adding/changing the substrate? Ideally I would like to use ADA products (used them in my 40 litre tank and its good stuff) but I don't want to kill the fish. What if I got some amazonia, soaked it for a week and put it in the tank? My filters a Eheim Ecco 300 on a 60 litre tank (overkill I know but I intend to change the tank in a year) so that should cope with it but obviously I don't want to do the fish in. Anyone got any tips?