75 degrees
When kribs start to pair up and breed however, you can expect to see some stereotypical cichlid behaviour. A pair of kribs will defend an area of breeding territory around 45cm (18in) square so in reality if kept in a community, the aquarium should be at least 90cm (36in) long. Ideal Water Conditions For Kribensis. Breeding kribs is often described as a just add water” sort of thing, but there is a bit more to it. The ratio of males to females in the brood is known to be pH sensitive, and only at pH 7.0 will approximately equal numbers of both sexes be produced. Sex determination can be made at about 3 months of age, and kribs are sexually mature within eight months. Kribs comfortably hold their place as one of the world’s most popular aquarium fish, thanks to their excellent balance of bright colors, small size and willingness to breed. Male kribs are larger (up to 3.5 inches) andhave pointed fins, whereas females are smaller (3 inches), more rotund and have shorter fins. The two sexes displayessentially similar coloration, but in males the colors are much less intense than those on the female. Water temperature is also important. Kribs can be maintained easily at around 75 degrees Fahrenheit, but raising the temperature to 78 to 80 will encourage them to spawn more readily. As always, be aware that warmer water contains less oxygen, so avoid overstocking, and if necessary, provide some extra aeration. Male kribs are larger (up to 3.5 inches) and have pointed fins, whereas females are smaller (3 inches), more rotund and have shorter fins. The two sexes display essentially similar coloration, but in males the colors are much less intense than those on the female. The territorial nature of the kribensis is however, part of their most interesting quality-breeding behaviour. Kribs are excellent parents and it is a memorable fish-keeping experience watching these fish pair up and breed. These fish are very aggressive. I have 3 pairs of them in a 75 gallon fish tank, mixed with 3 big tinfoil barbs, 3 fully grown pictus cats, two pecostomus, and a pair of huge fully grown convicts. The kribs are the smallest fish in the tank and they are VERY AGGRESSIVE.
http://www.thinkfish.co.uk/article/kribensis-aquarium-fish http://www.fishchannel.com/freshwater-aquariums/species-info/kribensis-care-and-breeding.aspx http://www.fishchannel.com/freshwater-aquariums/species-info/kribensis-care-and-breeding.aspx http://www.fishchannel.com/media/freshwater-aquariums/species-info/kribensis-care-and-breeding.aspx.pdf http://www.fishchannel.com/freshwater-aquariums/species-info/kribensis-care-and-breeding.aspx http://www.fishchannel.com/freshwater-aquariums/species-info/kribensis-care-and-breeding.aspx http://www.thinkfish.co.uk/article/kribensis-aquarium-fish http://badmanstropicalfish.com/profiles/profile19.html
what temperature for breeding kribs