Protecting Fish

Every aquarist knows that fish will not breed unless you get the conditions just right including light, water pH, hardness, salinity, depth, food, space, plant cover, rock shape… There are many fish species so picky that no one has ever managed to accurately enough mimic their native environment to induce them to reproduce. Fish are much more sensitive to changes in the environment than lay people would ever imagine. If we humans recklessly change the conditions in the wild even a small amount, fish will stop breeding and go extinct.

~ Roedy (1948-02-04 age:70)