Of course I've heard of cucumber and zucchinni. But what about apples, lettuce, canned corn, or other canned greenery? Baby spinach leaves? (I'm basically just listing off everything at my house lol) I know nobody will eat these things, so I'm hoping my fishies will. Plecos Guppies Cichlids Betta I've also heard potatoes? So basically list off anything I can use!?