L200 hemi/bary

[Chris helland]

As mentioned a bit to many times I have these L200. I thought they all were bary’s.
But lately I’ve had my doubts about one individual, he is mutch greener and has way more yellow spots then the others and rly sticks out as a nice individual.. But I actually think he is a hemi (traitor)

I’ll add som pictures

[Jobro]

Hey,

best way to make the distinctioin is to look at the mouth when its attached to glas.

Lowfin - Hemiancistrus


Hifin - Baryancistrus


Source:
l-welse.com

[Chris helland]

So ive bin told, but then ppl keep telling me that the fins need to connect which they dont. The mouth looks like a bary, they all do.

Out from the source you added i'm pretty sure its barys i got, thx.

[Jools]

The base of the dorsal fin connects to the body close to the adipose. This one looks like

Baryancistrus

to me.

Jools

[Chris helland]

Just found this thread and it confirms that this is a bary even more. Thx for the guidenc

http://www.planetcatfish.com/forum/view ... 66#p177566

[Chris helland]

The base of the dorsal fin connects to the body close to the adipose. This one looks like

Baryancistrus

to me.

Jools

Good to know, he is just so different from the other once, damn pretty tho

[Jobro]

So ive bin told, but then ppl keep telling me that the fins need to connect which they dont.

There seems to be an inconsistency about the fins. Like a natural variation within the species. That's why you should rely on the mouth.

[Chris helland]

That’s what I thought. Well now I know

[Jools]

Not inconsistency, it's a feature that defines the genus. But, fins can split, so it is more reliable to go on the mouth.

That said, if the dorsal fin is joined to the back, it's a sure sign.

Jools

[Chris helland]

That's tru, and from what I've also read now that seems to be different as well is taht the bary will get the yellow dots between the spins on the dorsal fin while the hemi gets it on the spins.


bary



hemi

[bekateen]

The base of the dorsal fin connects to the body close to the adipose. This one looks like

Baryancistrus

to me.

For what it's worth, the first two photos appear to show, rather cIearly, a membrane stretching from the last dorsal ray to the body surface. Although it doesn't extend to the adipose fin, it clearly is a membranous structure as seen in Baryancistrus... just my interpretation, anyway. Chris' photo of the Hemiancistrus clearly lacks it.

Cheers, Eric

[Chris helland]

New question, which size would you recommend on the caves for the L200? I’ve noticed that they would rather slack around between the rocks then in the caves, 1 fish would fit in the caves I have, but not so sure about 2 (for breeding ofc if it ever where to happen). From what I’ve bin told before the males will only guard a cave when he is ready for breeding?

[MarcW]

Although yours is a Baryancistrus, my Hemiancistrus L128 of a similar size, spawned in a cave measuring about 160mm deep 45-50mm high and 65 to 70mm wide. The dominant male would always be in the cave the other 2 males wouldn't cave despite there being others of a similar size. The female usually hung around the side of the cave under some slate.

It doesn't look big enough for them both, but they have spawned successfully in that cave, although thinking about it, maybe the egg survival rate wasn't great as the male couldn't get close enough to fertilise the eggs quickly? I would go for caves of at least this size and some bigger.

There is a video of them trapping here go to 14 mins 50 seconds to see the male move out of the way and the female exit the cave:

[Chris helland]

Awesome, great info, thx. My caves are around 137mm deep, 54mm high and 40mm wide. Guessing they are a bit smal then

[Jobro]

Basically, your cave should be a little longer than the male at least. If one fits, it is very likely two will fit, too ;)

Some plecos prefer very narrow caves, others wider ones. It depends.

Baryancistrus are some of the trickier to breed. You might look into some of the L177 spawns that are recorded. I think they needed really warm water. 33°C if I recall correctly. But please do not rely on me here too much

[Chris helland]

Hmmm might be a good point. Was sort of relaying on the hemi L200 since they are from the same river. But since they are two different species you might be right