5.5 month old Mastiff/border collie mix puppies?

my babies were taken from their mom at about 4 weeks and left in a box.There were 9 in total. We took two of them. OMG,they are the most cuddly,loving,gentle dogs I have EVER seen or been around in my life!!!! Not a mean bone in their body,even when they play rough,they rarely get rough enough for a yelp from the other. I was wondering if anyone else has experience with these type of pups. I swear to God,every day I grab their cute faces and hug them,gushing more than the day before at how loved they are. I have 3 boys 11,16,18 and we are all just in love with them. Best family dog I have ever owned and I grew up with dogs my whole life. Any advice on caring for them,or anything at all that I might want/need to know,love to hear from ya. cheers. LOVE is a WARM Puppy! :)