RVP
We can not see the attached pic!
You can feed him the green peas, plum, banana.
But when feeding first time, you need to chop all the veggies/fruits and soften them. Provide small amount of the food to check whether he eats or not! The listed veggies are eaten by my FH.
So you can start the diet , veggies one day and regular pallets other day, and repeat and have a break one day to let him fast. Veggies are good to prevent the constipation..
Eggs/yolks are good food for them when they are fry, lesser than 2" of size, and especially when they are not eating any food other than eggs.. But the boiled eggs/yolks are very messy and will turn your water cloudy and not recommended if FH eats other veggies/pallets..
But you can try always, there is no harm in trying until you know it's not dangerous/harmful to the FH, and you will get experience too!