Mine go crazy for shredded carrots but won't eat them any other way. Bananas I wait until they have lots of black spots and only remove half the peel. They are also crazy about romaine lettuce but won't eat leaf lettuce.
ok i will try to anwser all your questions i have had them for over a year, the ambient room temp is 78-84 i have a space heater running in my room at all times. they have completly stopped eating the males are not sparring anymore either..... i used to put a carrot in and they would swarm, now anything i put in there dries up before they eat. i mist a couple times how much is too much mist? i provide those water crystal things in a bowl for them for hydration. i have not gotten a count in a long time but they are housed in a 20 gal tank.