those are not brown trout i gurantee it. they r rainbows. i have caught like 100 rainbows and they look like that. heres a pic of a real brown troutPotts050;2542676; said:I used to own a trout farm and as I look at these bad boys it seems that they are more likely Salmo trutta (Brown trout). If they are then you will be able to keep them in a tank as long as the water stays below 75 degrees. They thrive in water that is kept closer to 70 degrees and very clean. Their gills can be easily damaged by too much suspended debris, so keep it clean (very low nitrates and no ammonia), clear and turbulent.
Heres a link to get you started;
http://www.michigan.gov/dnr/0,1607,7-153-10364_18958-45650--,00.html
http://www.fishbase.org/summary/SpeciesSummary.php?id=2083
If they are 'bows, Onchorynchus mykiss then you will need a chiller, since the best water temp is 54 degrees with the same basic properties that you would keep browns in.
Browns are territorial and therefore if you do want to keep a brace, you will need a large tank, at least 250 gallons that must have decor that allows each fish to have their own hole, where they can sit without seeing each other. They are one of the most intelligent fish, having evolved over the last two thousand years under intense angling pressure. they exhibit some fascinating and subtle behaviour.
Be aware that all trout are very sensitive to herbicides and pesticides. Concentrations in the parts per billion can kill them outright. Don't use a can of Raid or spray any weedkiller within a country mile unless the tank is up wind. Avoid aerosol cleaning products as well. Trout are used by scientists to measure polution concentration in industrial efluent by how quickly they die while swimming in it.
http://www.entacemulsions.com/images/labtest_images/96hr%20Rainbow.pdf
I doubt that if you keep them for more than a few months you will be able to eat them...
Nice fish, let me know how it works out for you.



