Steps for Successful Breeding
1) Before adding kribs, make sure your filter and heater are in good working order, and the cycle has finished.
2) Add a proven pair of kribs or a group of about 6 kribs and wait. It may take up to 10-12 weeks for the pair to breed which includes waiting for the kribs to settle in and 3-8 days for the eggs to hatch, so be patient. If you chose to add a group of 6, once a pair has formed, remove the other 4. Kribs breed in caves so be sure to use a half buried plant pot or a DIY coconut cave.
3) Krib fry should be fed on crushed flakes for the first week or two (baby brine shrimp is optional), parents are extremely protective of their young at this point! So don't plan on getting any fish apart from the parents and the fry. Sometimes the krib pair will gather all of the fry into his or her mouth, don't be alarmed as this is only the mother or father protecting them against other fish that may be in the tank, though it is not recommended to add other fish to a breeding tank to avoid predation of the fry.
4) Continue to look after fry and keep checking those water stats to make sure the ammonia, nitrIte or nitrAte don't go off the regular as this could be detrimental to the fry and adults.
5) Take fry out when the female starts to egg up again (when her belly looks very fat, almost like she swallowed a marble) she will view the older fry as intruders and will most likely attack them when caring for the new brood. Use a tank approximately the same size as the breeding tank to grow out the fry to a sellable size.
6) Last but very not least: change from finely crushed flakes to slightly crushed flakes and then on to non-crushed flakes in a period of up to 4 months changing every month and a half or so. After this feed pellets, at this point fry will be developing colour and beginning to mature. At 7 months they should reach a sellable size!
Done