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Crossostoma lacustre spawning!!

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

Re: Crossostoma lacustre spawning!!

Posted: Mon Aug 22, 2011 3:35 pm
by Jim Powers
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.

Re: Crossostoma lacustre spawning!!

Posted: Tue Aug 23, 2011 11:52 am
by Thomas
Great news Jim, wish you luck!

Thomas

Re: Crossostoma lacustre spawning!!

Posted: Tue Aug 23, 2011 1:00 pm
by ch.koenig
fingers crossed, Jim

Re: Crossostoma lacustre spawning!!

Posted: Tue Aug 23, 2011 3:18 pm
by plaalye
Great that you got to watch. I'd be tempted to remove some of those eggs. Good luck!

Re: Crossostoma lacustre spawning!!

Posted: Tue Aug 23, 2011 3:34 pm
by Jim Powers
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.

Re: Crossostoma lacustre spawning!!

Posted: Tue Aug 23, 2011 9:11 pm
by Emma Turner
That is great news, and so glad you got to watch it all happening! Fingers crossed for some little ones! :D

Emma

Re: Crossostoma lacustre spawning!!

Posted: Tue Aug 23, 2011 10:15 pm
by Jim Powers
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.

Re: Crossostoma lacustre spawning!!

Posted: Sun Sep 11, 2011 8:38 pm
by Jim Powers
They are at it again!!! :D
I have not seen any fry from the first spawning three weeks ago, but I keep looking.

Re: Crossostoma lacustre spawning!!

Posted: Sun Sep 18, 2011 12:29 pm
by Emma Turner
Excellent, Jim. 8) Any more developments?

Emma

Re: Crossostoma lacustre spawning!!

Posted: Sun Sep 18, 2011 12:41 pm
by Jim Powers
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.