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Request help to ID my Ancistrus, which just spawned! ;)


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#1 BrownBullhead

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Posted 14 October 2008 - 06:00 PM

Last Thursday, I bought two "spawning logs / caves" from a local importer. By Friday evening, two of my Ancistrus sp. had spawned!

I setup a 20-gallon I had in storage and moved the spawning pair with their log and eggs (careful not to get air on the eggs!) to the 20. I used 100% water from the setup they were in (African Rift Lake) and have done several small water changes to their 20 since moving them. I transferred enough substrate to make about 1 cm coat on the bottom of the setup. I also squeezed a "dirty" sponge into the setup.

I believe all is well in the new setup, but I have one problem - I don't know what species they are! I bought 6 @ 0.75" almost one year ago from the LFS. After a couple of deaths, I ended up with 2 males and 1 female. The fish were labelled, simply, "Bristlenose Pleco". Would you be willing to take a guess at a species ID using these images of my Ancistrus? Please click the thumbnails to open full size images in a new browser window.





#2 BrownBullhead

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Posted 14 October 2008 - 07:54 PM

Oh! I have wigglers coming out of the log, and holy smokes I never realized they would be this small! I know now that if I had left them in with the cichlids, they would have been lunch in a heartbeat! I've counted about 27 to 28 so far, and there still seems to be quite a few eggs inside the log, but very hard to see inside.

#3 scotcat

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Posted 15 October 2008 - 08:00 PM

Hi Brown Bullhead,

Nice to hear from you again. Identifying Ancistrus species is not the easiest as there are a lot of hybrids plus man made varieties and a few that look very much alike. I would go out on a limb and mention the nearest, Ancistrus cf. cirrhosus mainly because it looks very much like this species. It shows you how adaptable Ancistrus species are when you have kept them in Rift Valley water conditions and they spawn. Well done and the male is very nice smile.gif
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#4 mummymonkey

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Posted 15 October 2008 - 11:09 PM

Yes, you don't often get much closer than Ancistrus sp. Yours have nicer markings than the shop bought specimens that you usually see round here though. That's a nice cichlid by the way. A tropheus of some kind? Polli perhaps?

#5 BrownBullhead

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Posted 16 October 2008 - 01:07 AM

Uh . . . are Ancistrus carnivorous toward their young? Last night before bed I had 30+ wigglers and eggs still in the spawning log, today, *one* wiggler and no eggs? Am I missing something here? I checked in the driftwood and out of haste, tipped the spawning log for a better look. There's no one home, but Ma, Pa, and one wiggler.

mummymonkey: The cichlid was a Tropheus Moorii Kasakalawe.

#6 scotcat

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Posted 16 October 2008 - 08:02 PM

I would say that it would be very unusual for them to eat their eggs as Ancistrus males are very protective of their spawn. A few things....the eggs have been dislodged and sucked into filter intakes?. The pH of the water being too hard and them dying off? The fry hiding in the substrate? There are so many things to look out for. I would wait a few days and see what happens. I would think that they will spawn again anyway.
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#7 BrownBullhead

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Posted 16 October 2008 - 11:13 PM

I was only running a sponge filter, and on low. I dunno, I'll wait and see, but next time after they spawn, I am removing the female and leaving the male alone with the eggs and fry.


#8 BrownBullhead

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Posted 18 October 2008 - 09:05 PM

I bought a new piece of Malaysian Driftwood that is definitely the "focal point" in this setup, spanning 16" at its highest point, 20" at its longest point, and 12" wide at its widest point.

I want to take advantage of the tannis in this "fresh" wood from the LFS. Also, I bought Tetra BlackWater Extract to attempt to mimic the natural habitat of this species. The fish are already showing better colour than before. Photography will be somewhat difficult in this "black water" setup. wink.gif

The male is still staying inside his spawning log alot, which is kind of weird. The female has been more active since I did the above changes; she seemed to be hiding alot during the last three days or so.

I will post photos of the setup when I get a chance.

ScotCat: Our local water is very hard but the unusual thing is that between 23:00 and 18:00, all fry were gone, and no bodies were visible anywhere. sad.gif I am hoping that with my new setup as described above, I can change the aquarium environment to be more favourable to the Ancistrus requirements.

#9 BrownBullhead

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Posted 19 October 2008 - 12:30 AM

Doing some maintenance this evening, I found a female in the bottom tank of my rack that I *thought* I had, but didn't see her for a long time. It could be wishful thinking, but in my eyes, she even appears to be gravid. I moved her to the 20 with the "pair", which should hopefully become a "trio". Now, the male has two options, which should keep him from tiring one poor girl.

Now, if I added a second spawning log, would it be possible for him to have to separate broods that he would maintain? Keep in mind I lost the original brood, but just thinking for future breeding.




#10 scotcat

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Posted 19 October 2008 - 01:17 PM

QUOTE (BrownBullhead @ Oct 19 2008, 01:30 AM) <{POST_SNAPBACK}>
Now, if I added a second spawning log, would it be possible for him to have to separate broods that he would maintain? Keep in mind I lost the original brood, but just thinking for future breeding.


It certainly wouldn't do any harm. If the male gets aggressive towards one of the females at least she will have some hiding place.
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