Creative Human Interaction with Nature
Water Quality Parameters and Augmentation | A Permaculture Design Course Handbook.
Here is an in-depth article on aquaculture and how to tinker the system for full production while maintaining a perm-aquaculture approach. oxygen, fertility and temperature all examined. And in case any of my recent students forgot the url that i mentioned once or twice in class.
https://treeyopermacultureedu.wordpress.com/chapter-13-aquaculture/water-quality-parameters/