Hi! My guinea pig, Willow, she has the smallest appetite out of my guinea pigs and shes also the lightest one. When I give them veggies Willow would always be the least excited and slowest to eat the veggies and I think Willow eats less cause my other 2 would eat most of the veggies, however I dont know because I dont watch them because I give them veggies at night before I sleep and would be finished in the morning. What should i do? And is there a way to boost their appetite?