My 4 piggies are housed outside and have now moved into their new home which is a 2 storey hutch form p@h 5ft x2ft each floor, they only moved in yesterday but they dont seem to want to use the ramp i feel it may be a little steep and also the grip bits seem very far apart. Could someone please help as i want them to be able to get full use of their new home. I built a wall around the hole so they cant fall down.