Karakai Name Days, aka Teething Day

Unlike the sissy merfolk and their Swim Days Karakhai pups can swim within less than an hour after birth.  If they don't swim within an hour they will certainly die.  If a pup swims poorly, they might be put down by a shamed parent.
Pups are considered children of the entire tribe. All pups are considered brothers and sisters of the pups in their birthing collective. Adult Karakhai take care of all the tribe's pups. It is considered taboo to show favoritism to one's own biological children (and it's hard to determine exact paternity anyway given the chaotic nature of Kakarhai mating).
Typically the young pup (or pair, twin births are common), is feed their young chopped up chum.  Usually all the females of a tribe give birth to pups at roughly the same time, so pups are typically fed as a group.
Karakhai will try to catch very small prey alive and release the prey near their pups to see if their pups can hunt.  Each tribe has their own customs as to when it's time to have the pups should be "weaned" as it were.  Typically this is anywhere between twenty and fifty days.  Each tribe has it's own traditions on which "practice prey" is best.
Pups that seem slow to hunt by themselves may be killed, or they may be given additional chances.  It depends largely on how abundant food is for the tribe.  If the tribe is undergoing lean times, pups are shown far less mercy and understanding.  Some tribes deliberately limit the chum and practice prey released to force the pups to compete with each other, thus ensuring the tribe only accepts the strongest pup.
Pups are not given a name until they make a noteworthy kill.  Some Karakhai are okay with keeping their childhood name their entire lives, but a Karakhai can earn a new name in adulthood with a suitably impressive deed.  No one wants to be stuck with the name "Slow Biter" forever.