what is their lifespan?
11 years
Rainbow trout
The maximum recorded lifespan for a rainbow trout is 11 years.
when does a rainbow trout become a steelhead UNANSWERABLE what does this trout look like? Adult freshwater forms are generally blue-green or olive green with heavy black spotting over the length of the body. Adult fish have a broad reddish stripe along the lateral line, from gills to the tail, which is most pronounced in breeding males.
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Rainbow trout [SEP] Life cycle
Rainbow trout, including steelhead forms, generally spawn in early to late spring (January to June in the Northern Hemisphere and September to November in the Southern Hemisphere) when water temperatures reach at least . The maximum recorded lifespan for a rainbow trout is 11 years.