Breeding Hemiancistrus subviridis

All posts regarding the care and breeding of these catfishes from South America.
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Farid
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Re: Breeding Hemiancistrus subviridis

Post by Farid »

hi mats,
put a torch on top set it on wide angle and feed them...you might see more small ones...

that would be amazing!!

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Re: Breeding Hemiancistrus subviridis

Post by Farid »

UPDATE:
22 are out wiggleing their tail. 6 more to hatch...i hope the 6 eggs make it.
the male is back at it''s place in the tank!

farid
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Re: Breeding Hemiancistrus subviridis

Post by MatsP »

Checking out mine last night pretty much confirmed my suspicion that it's another frigging bristlenose - if they didn't need water, I'm sure they would come out of my ears by now. :(

I can only really tell for sure by getting the fish out of the tank, and where it's hiding, that would mean tearing down quite a bit of the decorations. Not something I wish to do. I'll just wait until it grows bigger. But seeing as I have "escapees" in two of my four tanks in the other rack too, I'm pretty sure that's what happened.

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Re: Breeding Hemiancistrus subviridis

Post by Farid »

hi mats,
just dont forget to feed powdered food from time to time as L-catfish babies need a lot of food to grow healthy not like normal bristlenoses. i put my L204 fry back into a inhanging tank to feed them straight 3-4 times a day...and what happened...they got massive stomaches and started to grow quite well...others died because the food in the maintank was not enough!

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Re: Breeding Hemiancistrus subviridis

Post by MatsP »

The small fish in my tank is DEFINITELY an Ancistrus - it was sitting on the front glass doing the usual Ancistrus eating thing this morning.

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Re: Breeding Hemiancistrus subviridis

Post by Farid »

hi mats
they wll go for it sooon as they are ready for it...
may you show me a pic of this tank??

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Re: Breeding Hemiancistrus subviridis

Post by MatsP »

I haven't got any good photos of the tank, as it's hard to get to, and too much stuff that gives off ugly reflections on the front glass.

Here is a partial shot of the tank:
IMG_0006-resize.JPG
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Re: Breeding Hemiancistrus subviridis

Post by Haavard Stoere »

Today I got a new clutch of L200 eggs. I am trying to hatch them in a small aerated container with methylene blue. It is a crude method, but I hope it works.
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Re: Breeding Hemiancistrus subviridis

Post by Cristoffer Forssander »

Hi Håvard!

What do you think is the trigging point to get teh L200s to spawn?
Any luck with the L128s.... they shouldn't be that different....

Cheers
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Re: Breeding Hemiancistrus subviridis

Post by Haavard Stoere »

Cristoffer Forssander wrote:Hi Håvard!

What do you think is the trigging point to get teh L200s to spawn?
Presently I believe the L200s spawn all year and I can`t see any relation between triggers and spawns.
Cristoffer Forssander wrote:Any luck with the L128s.... they shouldn't be that different....
One after another they have turned out to be males. I have only one that may be female, but I would not be surprised if it to turned out to be a male. Actually I believe it will turn out to be male.
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Re: Breeding Hemiancistrus subviridis

Post by Farid »

Haavard Stoere wrote:Actually I believe it will turn out to be male.
havaard
i guess you should do some shopping :)

good luck with the 200's

another 18 are growing nicely at the moment...

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Re: Breeding Hemiancistrus subviridis

Post by Haavard Stoere »

Today my latest clutch of eggs has started to hatch. The eggs were laid on Saturday or Sunday

I used Methylene blue to prevent bacterial infections as described here:
http://www.planetcatfish.com/forum/view ... =4&t=27435

The first two have emerged and I am very exited to see how this traditional method of hatching eggs works with the sensitive L200 eggs and fry. I have reduced the amount of Methylene blue considerably to prevent damage to the fry, but I will not remove all methylene blue unntil hatching is in full progress. The fry will be siphoned out and placed in a frysaver in the main tank as soon as they hatch.
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Re: Breeding Hemiancistrus subviridis

Post by Haavard Stoere »

In retrospect I think the eggs were laid on Sunday.

The two fry that hatched yesterday died. They were simply to early. Today 22 have hatched and have been siphoned out and put in a fry-saver with sand in the main tank. only 2 of the 22 that hatched today have been discarded due to punctured yolk sack.

I brush the eggs once in a while with a soft synthetic paintbrush to simulate the broodcare of the male. Sometimes this results in one or two hatchlings.
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Re: Breeding Hemiancistrus subviridis

Post by Haavard Stoere »

Naturally, with my fingers, and some sharp tools my count is 106 eggs. 101 of these have hatched. 4 are already dead. 5 of them died long before hatching.
If my counting is correct (it might not be ) I have 92 fries. I will do a new count tomorrow just to be sure. Because of disturbances I may have counted 10 or 10x2 wrong, but I usually don`t
Some of the hatch lings seems to be doomed due to malformations and leakage. If I manage to raise 30 I will be happy. If I manage to raise 40 I will be very happy. 50 will make me extatic. 60 is impossible.
Cheers everyone!!
H.
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Re: Breeding Hemiancistrus subviridis

Post by Haavard Stoere »

Tonight I counted 84 Fry's. I will have to wait a couple of days for a new count. I had some problems concentrating while counting.

Anyways... It looks promising :foggie:
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Re: Breeding Hemiancistrus subviridis

Post by andywoolloo »

:thumbsup: congrats!
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Re: Breeding Hemiancistrus subviridis

Post by Cristoffer Forssander »

Haavard Stoere wrote:Tonight I counted 84 Fry's. I will have to wait a couple of days for a new count. I had some problems concentrating while counting.

Anyways... It looks promising :foggie:

Hello Håvard!

Is 84 fry's from one spawn???

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Re: Breeding Hemiancistrus subviridis

Post by Haavard Stoere »

Cristoffer Forssander wrote: Is 84 fry's from one spawn???
Correct :D

There will be some losses over the next few days, but maybe I can raise 50-60 of them. L200s are very vulnerable compared to bristle-nose fry. The fry will be raised in a 200 liter tank with dwarf shrimps when they are old enough to eat.
I am of course very pleased with the result. Unless any other disinfectant is recommended I will use methylene blue as standard for hatching L200s.
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Re: Breeding Hemiancistrus subviridis

Post by Haavard Stoere »

I have siphoned out a few dead ones and counted the live ones again. I now have 79 seemingly healthy L200 fry from a single brood.

It is great fun, but it also means more money to buy pumps, electricity and more fish in 2010 :D The economic side of breeding is important to hobbyists with a relatively small income from real work. Gems like the L200 is easy to sell, and prices are quite constant. Quite unlike Corydoras and Apisto species that varies a lot more.
The breeding male is back in his cave waiting for a lady visit. :D
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Re: Breeding Hemiancistrus subviridis

Post by jac »

Well done Haavard! Congratulations :thumbsup:

Seems like the MB has done it's job. I also use MB for my Green Stripe cory eggs but mainly use Mycopur from Sera. Works just as well and for me it's easier to get at because MB is illegal here.

Good luck with the youngsters :foggie:
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Re: Breeding Hemiancistrus subviridis

Post by Haavard Stoere »

Thank you jac :D

MB illegal in Holland? I thought everything was legel in Holland, and the opposite in Norway. That being said my bottle of MB is not properly marked and bought through a private individual, and is thus illegal in all european countries, but who cares? BN has no recreational value :twisted: .
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Re: Breeding Hemiancistrus subviridis

Post by Cristoffer Forssander »

Haavard Stoere wrote:
Cristoffer Forssander wrote: Is 84 fry's from one spawn???
Correct :D

There will be some losses over the next few days, but maybe I can raise 50-60 of them. L200s are very vulnerable compared to bristle-nose fry. The fry will be raised in a 200 liter tank with dwarf shrimps when they are old enough to eat.
I am of course very pleased with the result. Unless any other disinfectant is recommended I will use methylene blue as standard for hatching L200s.
Damn.... thats amazing. How big is the female? Then it's possible for this species to get over 100 fry from one spawn then... it's way many more than I thought was passible.

Congrats!
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Re: Breeding Hemiancistrus subviridis

Post by Cristoffer Forssander »

Cristoffer Forssander wrote:
Haavard Stoere wrote:
Cristoffer Forssander wrote: Is 84 fry's from one spawn???
Correct :D

There will be some losses over the next few days, but maybe I can raise 50-60 of them. L200s are very vulnerable compared to bristle-nose fry. The fry will be raised in a 200 liter tank with dwarf shrimps when they are old enough to eat.
I am of course very pleased with the result. Unless any other disinfectant is recommended I will use methylene blue as standard for hatching L200s.
Damn.... thats amazing. How big is the female? Then it's possible for this species to get over 100 fry from one spawn then... it's way many more than I thought was possible.

Congrats!
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Re: Breeding Hemiancistrus subviridis

Post by Haavard Stoere »

I think you are having problems with the quote thing Cristoffer :twisted: Also your name does not exist according to the Microsoft wordlist :wink: I added it in my own wordlist by the way.

The number of eggs in the clutch must have been around 96, not 106. As I counted I got a bit distracted by family matters, so I probably skipped up a whole 10. I am generally very good at counting, but I can get distracted.

My breeding male is the smallest of my adult males. He only measures 14cm tl. When he first started breeding almost 2 years ago he was only 12,5 cm. That's small!!! My breeding females are 14-15 cm tl. Not really large, but I am confident that conditioning is close to as perfect as it can get in a captive environment.

To clarify the numbers... I believe the nearly correct numbers have been. I believe these numbers are correct or close to correct:

Saturday 12/8-2009 96 eggs laid. 6 of them unfertilized.
Thursday 17/8-2009 2 eggs hatched and died shortly afterwards.
Friday 18/8-2009 Totally 24 have hatched and 4 more are dead
Saturday: 83 alive. 2 new dead.
Saturday (late) 18/9-2009: 79 alive. 3 more dead

I think this is abut correct. If not it is nearly correct.
Last edited by Haavard Stoere on 19 Sep 2009, 23:21, edited 1 time in total.
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Re: Breeding Hemiancistrus subviridis

Post by husky_jim »

Haavard Stoere wrote:I am confident that conditioning is close to as perfect as it can get in a captive environment.
Judging by your accomplishments this is true Haavard....Keep up the good work! :thumbsup:
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Re: Breeding Hemiancistrus subviridis

Post by Farid »

hi folks hi havaard,
also my paiir is in the cave again tonight :) sooner or later i goot a rhythm found to make them bree more or less once a month :) until now...

this is the 5th spawning this year!

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Re: Breeding Hemiancistrus subviridis

Post by jac »

Haavard Stoere wrote:Thank you jac :D

MB illegal in Holland? I thought everything was legel in Holland, and the opposite in Norway. That being said my bottle of MB is not properly marked and bought through a private individual, and is thus illegal in all european countries, but who cares? BN has no recreational value :twisted: .
MB is not available in any fish store anymore. But if you really want something, everything is for sale in Holland :mrgreen:
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Re: Breeding Hemiancistrus subviridis

Post by Farid »

...even switzerland with it's million rules for this an for that...i just went and got it in a drugstore...(thats why it's calles like that ) :lol:

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Re: Breeding Hemiancistrus subviridis

Post by Haavard Stoere »

4 losses today, so I am down to 75 live ones.

Farid... Do you loose any fry after they start eating? What do you think is the best food items the first few weeks?
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Re: Breeding Hemiancistrus subviridis

Post by bronzefry »

Wow! Nicely done. I hope you have some survivors. It's tough finding your way with a new species. Are you finding more aeration helps with the eggs?
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