My g/f and I went to the LFS the other day and she fell in love w/ the ADF's. Presently she has a small 2.5 gal tank w/ a couple of tetras. I havent delt a lot w/ the ADF's and I was wondering if they would be comfortable in this small enviroment? If so how many? What types of food? and anything else I should know about them. Thanks. :help: