This forum tends to be heavier in scientific discussions as many posters, like Tom Barr and Dianne Walstad, have science or academia background. Amano is not a scientist but a nature photographer, so he sees aquascaping with artist eyes. His well known publications are heavy in photography, but light in narratives and science. His approach is empirical, based on experience more than theories. Even his discovery of the use of CO2 is an accident by pouring soda water after a bar visit. His contribution in aquascaping includes not just CO2, but pioneering the use of novel plant species, mosses, carpet plants and shrimp he explored from nature.