http://www.ecofilms.com.au Intensive aquaculture fish farming with a hydroponics component at Green Sky Growers in Florida. Here tilapia are grown using high protein fish food and liquid oxygen to grow 1 lb of fish per 1 gallon of water. Please don't try this at home as one small failure will destroy your entire output of fish. Read our blog for further information at ecofilms.com.au