like was said earlier.. as for the bird.. the cage is the most important.. it should be big enough for it to spread his/her wings.. flap and maybe do a lil fly around.. unless you plan to take him/her out daily.. water should be changed daily unless needed earlier.. some birds can mess their water faster..
and as for fish.. it depends on the fish and tank you get.. which for most you´ll need one with filtration...and sometimes heat
you can get a Betta.. really pretty.. and you can have in a big bowl and do water changes 1-2 times a week..
as for food you can get flakes or pellets.. also depending on the fish you get.. and consider some species CAN´T be together and some others can..
Bookmarks