They are members of the salmon family and, like their salmon cousins, can grow quite large. They average about 20 to 30 inches (51 to 76 centimeters) long and around 8 pounds (3.6 kilograms), but can grow as long as 4 feet (1.2 meters) and weigh up to 53 pounds (24 kg).
A Rainbow Trout when is about 13 in should weigh about 1 lb while an 18 in trout weighs about 2.5 lb.
watever size it can be between 12cm-1.5m
BIG.
Salmon and trout are in the same family..Salmon generally get larger, but some trout grow nearly as large.
No.
Yes, salmon can grow much larger than trout.
It grows 1inch per month
large rainbow trout brown trout and more
Trout are usually grown in a hatchery and when the fry are big enough they are planted in a stream or lake.
There are several species of trout. The largest lake trout recorded weight is over 60 pounds, and rainbow trout weighing as much as 25 pounds have been caught.
Crocodile trout is a term used to describe a tremendously large trout. (Usually one that almost got caught but managed to get away!)
There are commonly two types of habitat for a rainbow trout. First is a river or stream. As long as the water is cold and flowing trout will flourish. Although this is so, a trout will only grow as big as it's environment lets it. Secondly, is a lake. Just like trout in a river, trout in a lake need to be cold to live to their potential. Trout in lakes normally grow much larger than trout in a river. Usually because food is more prevalent and they have much more space to move.
Trout farming is a type of aquaculture that involves raising trout for sale as food. To farm with trout, you must have large ponds with constantly moving cold water. The fish are typically feed daily as well.
greenback cuttthroat trout are normally found in large rivers or some regular spillways
There are many you tube videos but they get up to 40lbs!