I think lava rock (UK) and lace rock (US) are the same thing. I also think the aforementioned article is talking about any igneous rock, not lava or lace rock.
Jools

You might be right that they are the same thing :) they look very much alike on pictures...

But still my question stands - will ...

drgold wrote:
Lace rock isn't generally sharp. It's fairly brittle when thin, so it doesn't make edges like, say, obsidian, or even slate. I imagine there's some on ebay, but shipping might be an issue.

I will have a look for some on ebay but as you write shipping is likely to bee an issue

thanks

jerry58 wrote: They are a nice fish why take the risk just use slate and caves and bit of bogwood.Even plants if you like them will do fine.

Well i dont find that slate and bogwood looks like the river xingo And I would like to make a natural looking biotope...

lace rocks have I never heard of but they look nice! Do they have sharp edges and corners? and if yes does the edges seem to make injuries to your plecos?
Thanks!

Hi,
I am setting up a new aquarium for L046. I have been reading this very fine article about decorating a tank like the river xingu.

http://www.planetcatfish.com/shanesworld/shanesworld.php?article_id=400&title=Aquascaping+for+%3Cem%3EHypancistrus+zebra%3C%2Fem%3EThe+Rest+of+Us

The article tells ...

Thanks for your answer!
It is very diccult to see the diffence on mine. Maybe they are just to young. I believe i can see some small odontodes on two of them if i look closely on the picture. That could mean I have two males and one female...
Next comes the question if it is l201 or hyp. contradens ...

Do the females have just small odontodes on the pectoral finns? or do they not have any at all?

Thanks a lot!
I am happy as long as I have one male and female
But it is even better if I have 1 male and two females...
Now they will just have to grow a bit before trying to breed them.
Is it on the body shape you can see the sex? The females have a little more hip than the males?
Thanks

final pictures

more pictures

Can you please help me with sexing these L201.
sorry about the pictures but they are as good as I could get them