this was a good artical. There was alot of things about the FH i did'nt know thanks for that tib bit of imporatn infomation.
although i have a FH which is my second one,the first one died of an internal disease.
But i never saw it (hybrids) as a environmental threat! But alot of those fish mentioned in artical is hard for me to find linving in the washington dc arera. but i will keep this in mind. Thanks for the info...