i hav 3 fire bellys in a 73 cm wide tank with a shallow 11 cm water hight. I hav sand as a substrait with a big lump of wood and big rocks for land areas.My advice is try and keep the tempreture low (22 celseies) and becareful what ornements you use dont use items that are to sharp because they might damage youre newts delicate skin.Tell me if it all works out
chris