My cage floor is not wire but plastic. Originally meant for Guinea pigs. Is this cage ok for my rabbits to lay down..believe the holes in the floor are not big enough to trap their legs. Also when they eat the hay in the pen and move back to the cage, the brown one with shorter legs apparently just walks in. But the orange fellow just jumps straight in all the time sometimes hitting the cage wall. Any idea how to curb this habit of hers? The pic below will show the distance she jumps from...