I have a litter of 5 small breed puppies. Four are doing well and gaining weight. One little guy is struggling to suckle . He seems to just play with the teat. His weight started to go down rapidly so I've started tube feeding him. I just want to make sure I'm doing everything I possibly can.. He appears lively enough and wants to feed. He is just unable to do so. He weighs 7 oz so I'm tubing 7 ml every 2 hours and have been doing this since yesterday . In between feeds I am giving him life aid rehydrate solution 3ml
He still appears slightly dehydrated and urine is darker than I would like. I've checked his mouth and I can't see any sign of palate problem ...Any advice gratefully appreciated...