I would continue to monitor for the next couple of weeks! they are just so small that when something happens, it happens quickly! The best way to catch it fast is daily weighing!
Safest to do it. Now perhaps every second day, esp if they visible are thriwing and adding..
CocoJR is gaining a little too little, siblings gain more.
Kittens are now just over 4 weeks old. I've tried to introduce them to biscuits and wet food, 1 of them has taken to it a bit.
Umm concern is I've noticed a wet patches so I assumed they have peed, I put a small litter box in for them and some have started eating the litter. It's a clumping type one that's found here (9/10 times I only can get this).