Sylvia Bernstein is the president and founder of The Aquaponic Source. An internationally recognised expert on aquaponic gardening, Sylvia speaks, writes and blogs extensively abou...lihat lebih banyakSylvia Bernstein is the president and founder of The Aquaponic Source. An internationally recognised expert on aquaponic gardening, Sylvia speaks, writes and blogs extensively about this revolutionary technique.lihat lebih sedikit