This idea of collecting temperate animals for acclimation into tropical will fail 100%. Oregon's native marine animals are true temperate sea creatures unlike southern California subtropical animals which can tolerate higher 60's for a short time, now it's true that inner tidal animals such as purple shore crabs and some anemones can regulate there body temperatures to combat low tide exposure twice a day but this is still temporary and in all of our experiments (Coldwatermarineaquatics) raising the temperature past mid 60's always resulted in stress on the animals and death. This notion you have is not new by any means and is still very frequently used in the tropical hobby as a money making scam by selling subtropical animals that can last for several months in a reef tank but will always end up starving to death from stress due temperature, temperate water has a higher oxygen content due to the lower temperature. This plan of yours sounds good in retrospect but will fail miserably not trying to highjack your thread and be the barrier of bad news but saving you the wasted time and flaming you will receive for trying somthing that's so obvious meaning that if this worked don't you think our company and the thousands of other companies would already be selling coldwater invertebrates and fish for tropical reefs lol???? If you need more info I would urge you to educate yourself by using online tools like fishbase.org or just Google for info on the temperature range of these animals and remember your not new at this by any means and a ton of people have already made these mistakes so you don't have to, if you need help setting up a coldwater tank feel free to email me at coldwatermarineaquatics@gmail
Josh Groves