Now that you went back over it and fixed some of the errors I think it's perfect! As a mater of fact I would go as far as to say I think it's one of the best tomes ever delivered on the subject. I've saved a copy to refer back to from time to time. I think this thread is finished any further discussion would be paramount to drawing a mustache on the Mona Lisa.
Some have accused you of trolling - looking at a few of the threads you have started recently it is not surprising.
I am going to write this as if your intentions are genuine...
Books about fishkeeping are written by experts in the field. Usually they hold doctorate degrees and have a long list of credentials (editor at a fishkeeping magazine, university professor, noted breeder or collector, et cetera). If you really want to write a book, focus on your education and aim for a career in aquaculture or a related science.
I am going to ask for this thread to be closed, it isn't my forum to moderate.