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General Category >> New World (annuals) >> Simpsonichthys flammeus Breeding
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Message started by Patrick Sabourin on Nov 21st, 2019 at 7:44pm

Title: Simpsonichthys flammeus Breeding
Post by Patrick Sabourin on Nov 21st, 2019 at 7:44pm
Upon purchase of these fish, I contacted the breeder, Greg Niedzielski, and received the following email, that he gave me permission to share on this forum. Thanks Greg.

The flammeus are fairly easy to breed. I bred them in regular Buffalo tap water, which is pH 7.4 and 150ppm, so your water should be fine. Optimum temperature would be in the mid seventies.† I bred them over sifted and boiled peat moss placed in a small Tupperware container. They donít dive too deep, but they will scatter the peat in the tank. I incubated the eggs at room temperature for 3 months or so, and hatched them again in regular tap water. I fed them brine shrimp as a first food, but Iím sure theyíd eat infusoria and microworms as well for the first couple of days. They grow fast and will be sexable in 2-3 months. They have more red on them when young, but when they mature the male will have nice extensions on the unpaired fins, like a constanciae.

I fed the adults frozen brine shrimp with the occasional feeding of bloodworms as a treat. They also like live blackworms. Most killies arenít too keen on prepared foods, so I never fed them anything like flake food. They donít seem too susceptible to disease, but with all my annuals I put Ĺ tsp. of sea salt per gallon just in case they get Velvet.

Good luck with them, they are a very nice little pearlfish! Feel free to post this.

Title: Re: Simpsonichthys flammeus Breeding
Post by Kris Haggblom on Nov 29th, 2019 at 3:35pm
Thanks for sharing! I would agree with Greg on all points. I found the males to sometimes be a bit aggressive in driving the females, though not excessively so. A bit of cover (I used hornwort) and everything was fine. They are a beautiful fish.

Title: Re: Simpsonichthys flammeus Breeding
Post by Patrick Sabourin on Jan 31st, 2020 at 5:37am
I have young adults now!  Gorgeous fish. However, they are all males.  Any ideas on what effects sex ratio in N. flammeus?

Title: Re: Simpsonichthys flammeus Breeding
Post by Kris Haggblom on Jan 31st, 2020 at 1:43pm
It has been observed that rearing annual killifish at a relatively high pH (over 8.5) results in substantially more males.
I also noticed that the males tend to grow a bit faster and so may out-compete the females for food. This led me to segregating fry by size about every 10 days or so for the first  month. Invariably, the container with the smallest fry turned out all female.

Title: Re: Simpsonichthys flammeus Breeding
Post by Patrick Sabourin on Feb 13th, 2020 at 9:42pm
Thanks Kris,† I have another batch that just hatched. I'll try to keep smaller fry separate.† By the way, my pH is about 7 - 7.5, hardness about 120-140 ppm.† Temperatures about 74-79 F† since the room is heated.

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