Over a 10-to 12-week spawning season , each set of three 100-gallon troughs (one for eggs, two for fry) could be expected to produce roughly 1 to 1.5 million fry and would require
Over a 10-to 12-week spawningseason, each set ofthree100-gallontroughs (one for eggs, two for fry)could be expected toproduceroughly 1 to 1.5 million fry andwould require