I think my pair of kribs are starting to spawn. They have almost sealed off a cave with substrate so there's only a tiny sliver left open that the female slips easily inside. Since yesterday the male has been standing guard over the opening chasing everyone away as soon as they come close to his little territory and the female is spending 95% of her time inside the cave.
If they are in fact spawning, how long does it take before the fry will hatch?
They're in a 29g tank with 6 cories and some mollies as well so I was curious about how aggressive they'll be in that size tank once the fry hatch as well.
I have no problem with other fish eating them as I really don't plan on selling them but I want to make sure the male doesn't hurt any of the cories as they bumble into his territory searching for food on their daily activites.
Anyone else ever have fry in a tank this size?
I've actually had mine spawn in a smaller tank than yours (20g). As long as the parents are satisfied with their chances of raising the fry, you can expect plenty of them to survive to adulthood. The cories won't actively try to eat the fry but they can bumble into the general area and will get chased off by the adult kribs. My cories never sustained any injuries but you'll want to keep an eye out all the same.
It only takes a few days for the fry to hatch and then a few days after that they'll be mobile. Over time, the parents will take them out on increasingly distant excursions for food and eventually the group will spread out and the parents will stop watching over them. Way down the line, the parents will stop tolerating their presence and will chase them off. Kribs are fairly slow growers though so you'll have plenty of time to set up a grow-out tank or find a LFS that will take the fry off your hands.
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