Crossostoma lacustre spawning!!

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Jim Powers
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Crossostoma lacustre spawning!!

Post by Jim Powers » Mon Aug 22, 2011 11:28 am

I turned on the lights a little later than normal this morning to find two of my Crossostoma (now Formosania) lacustre attempting to spawn in a depression they had dug beneath a piece of driftwood!!
Hopefully this will result in fry in a couple of weeks. We shall see. The tank has many shrimp and some other potential egg or fry eaters, but I have had three other hillstream species successfully spawn in this tank over the years.
Unfortunately, I can not get a pic of what is going on, but this pic of the similar species Liniparhomaloptera disparis spawning gives a good idea how they do it. Its interesting to note that the C. lacustre are spawning within two inches from the spot that the L. disparis spawned in this pic. They are one the other side of the rock like ornament. Must be a good spot.

The male C. lacustre is similar in size to the female unlike the size difference seen here in the L. disparis pair.
http://www.loaches.com/species-index/ph ... 5.JPG/view
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Jim Powers
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Re: Crossostoma lacustre spawning!!

Post by Jim Powers » Mon Aug 22, 2011 3:35 pm

They just finished up a short time ago. That's over 5 hours!!
There were eggs in the nest, but they left it uncovered. I'm not sure if that is normal for them, but I bet it is not. I covered the eggs with gravel so the shrimp would not eat them. If the eggs are viable and the fry survive, I would expect them to come out of the gravel much like L. disparis in about two weeks. I'll keep looking.
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Thomas
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Re: Crossostoma lacustre spawning!!

Post by Thomas » Tue Aug 23, 2011 11:52 am

Great news Jim, wish you luck!

Thomas

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ch.koenig
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Re: Crossostoma lacustre spawning!!

Post by ch.koenig » Tue Aug 23, 2011 1:00 pm

fingers crossed, Jim

plaalye
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Re: Crossostoma lacustre spawning!!

Post by plaalye » Tue Aug 23, 2011 3:18 pm

Great that you got to watch. I'd be tempted to remove some of those eggs. Good luck!

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Jim Powers
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Re: Crossostoma lacustre spawning!!

Post by Jim Powers » Tue Aug 23, 2011 3:34 pm

Thanks!
I have tried to move P. cheni eggs before and they didn't hatch so I thought just mounding the gravel over the nest would be the best option. I thought they would cover the nest themselves but they didn't.
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Emma Turner
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Re: Crossostoma lacustre spawning!!

Post by Emma Turner » Tue Aug 23, 2011 9:11 pm

That is great news, and so glad you got to watch it all happening! Fingers crossed for some little ones! :D

Emma
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Jim Powers
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Re: Crossostoma lacustre spawning!!

Post by Jim Powers » Tue Aug 23, 2011 10:15 pm

Yes, it was interesting. Hopefully, not the last time I see them spawn.
One thing I noticed that makes me wonder if they leaving the nest uncovered is normal. While they started digging the nest next to a piece of driftwood, just as L. disparis would do, they ended up underneath it. So, most of the eggs may actually have been covered underneath the driftwood. If I get to see them spawn again, I will see if they do the same thing.
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Jim Powers
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Re: Crossostoma lacustre spawning!!

Post by Jim Powers » Sun Sep 11, 2011 8:38 pm

They are at it again!!! :D
I have not seen any fry from the first spawning three weeks ago, but I keep looking.
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Re: Crossostoma lacustre spawning!!

Post by Emma Turner » Sun Sep 18, 2011 12:29 pm

Excellent, Jim. 8) Any more developments?

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Jim Powers
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Re: Crossostoma lacustre spawning!!

Post by Jim Powers » Sun Sep 18, 2011 12:41 pm

Haven't seen anything yet. I think I might do a major shrimp relocation since the population of zebra/tiger shrimp in that tank has grown quite a bit since I removed the panda garra. That may help with egg and or fry survival.
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