I pnly give my cat eat makanan kucing timbang and nasik lauk ikan
pemakanan berkala
sekarang sudah berotot

Hello AbBy_C, good to see you here.

What is your kitten age anyway? if it is more than 3 months old, you may want to skip that milk. Since kitten age 3 months need less milk, because they can eat 100% by them self. Kitten food is formulated with so much nutrition which is equivalent to milk.

at one point, some kitten will stop milk at the age of 1 1/2 months.

some kitten will have diarrhea when drinking milk. the best milk is always mother milk.

so, if your cat is more than 2-3 months, you can just give them Royal canin kitten food. and wiskes wet food maybe twice a week. that's consider good .

errrkk staircase? where is that staircase heading too? the window? if window you can put netting if it is open all the time. if other place, errkk thing twice, you might not want your house is fully attach with netting ehehehe.

how high is the staircase to the group?

cats very good in balancing them self. they are a good jumper too. but not all are successful jump. some may come to accident while landing. normally happen at the short jump... if it is higher place, possibility to get perfect landing, because they have the time to balance their body to the right position.

i think, for sure the house will look bad with your put netting on the staircase all the way to 2nd floor. am i right? 

how's your kitten doing? hopefully he's fine now