@Suckermouth
They appear to not be using their sharp pectoral fin spines
No they don't, I haven't seen any damage yet. I did however do some damage myself (completely healed).
When I was redoing this tank, I caught them and placed them in another tank for a few days.
Then when I caught them again, the last one got into a defence mode and stuck out his pectoral fin spines.
Wow. He was stuck in the net. I took 20 m to free him again.
The fins where a bit damaged because he was trying to get free.
But after a week or so, the fins where ok again.
Easiest way around this is to not catch them at all
![Smile :)](./images/smilies/icon/smile.gif)
Or buy a net with larger holes...
As for pushing the shoulder spot, now that you say it, that is indeed the spot that they try to get to.
Wow, I never realised this is a center of gravity. I will be able to look more closely to these encounters
@Viktor
Bigger is better then. And in what sence, do they feel more at ease in a larger group?
Or do they get more aggressive when they get big?
VJ: interesting. There must also be a size-confidence relationship. My biggest ones were most visible.
That is what I see as well. The biggest one ventures out first, and by doing so, he/she gets the most food.
I always throw in additional sinking pellets if I see the other catfish come out.
This is one cat that every LFS has...
They are very attractive, but I wonder if the size is the only reason people return them.
If you only keep a few of them, you are going to rarely seem them.
That must tell you they either grow real slow or get stunted easily.
Or maybe the maximum total length was really a huge specimen and 1 foot is the more common length?
Something else I saw, that is funny, is that the last couple of weeks, 1 of the Horabagrus is stationed outside
the rocky enclosure, and is lying beside the rock or sometimes vertical. Really funny to see.
There are pipes enough to hide in yet he seems to prefer the rock lately. Maybe the other chase him out?
That's the only downside to the rocks, I cannot see what goes on in there
Is there any way to tell the difference between male and female?