PlanetCatfish.com

Not viewer friendly. They are still in their temporary rubber liner pond. I hope to have them back in a 4500 gal in some weeks. Then will be able to measure and provide pics. Until then, take my loose numbers with a big grain of salt.

The truce has grown into a solid wound-free period. Still fragile. They do keep apart but when they bump into each other accidently, the bigger one flees swiftly.

Low effort, quick and dirty pics of the two Zungaro zungaros. ZZ is ~ 28" (1st pic; dark, still stressed from the move). Zyazyulya is ~ 22" (2nd pic, more relaxed). First hours back in a 4500 gal. Will work on better lighting and, hence, pics. The maxillary barbels on both are just starting to grow back from all the fighting.

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AMAZING !!!
Thanks for sharing.
No sign of aggression in the bigger environment. Worth noting
I wonder also could the complete lack of any Wood, Caves, Rock formations etc lead them to have no where to " territorialize"?

With weeks passing by, the smaller one Zyazyulya is having more and more tattered caudal and pelvic fins. I am not sure who is the main bully if there is one. Zyazyulya runs away from the bigger one ZZ and from the RTC when they bump into each other. So these must be it. A bit too early to tell what is going to develop. RTC appears to shove around ZZ too a bit. So ZZ retreats every time he bumps into the RTC.

Both Zungaro zungaros are feeding well and are comfortable otherwise. RTC is not himself yet since re-homing.

As for the territories, a 2' Zungaro zungaro should consider a far larger area its territory than a 13'x13'. I cannot be sure but I imagine it'd be in ~ 100'x100' range.

An update on compatibility issues.

Neither zungaro is bothering any other fish in the tank. They never have as much as I could see in the past either, except for preying on much smaller tank mates. The only squabbles I recall occurred between ZZ and the TSN x Marbled Pim hybrid in a 120 gal when both were ~10" (see first page).

So from my limited experience, zungaros do not appear to be as territorially or hierarchically aggressive to other spp as they are sometimes / often written about.

To each other, that's a different story. Upon more observation and time, it became clear that all the damage done to the smaller Zyazyulya is the work of the bigger ZZ. Zyazyulya's fins are getting more tattered. His appetite is, however, superb. I tried turning the lights off in the tank a few nights and just leave a distant fish room nightlight and ZZ has turned real vicious. He chased Zyazyulya with a 100x stronger gusto and an intent to kill.

I will need to separate Zyazyulya sooner than later. For now, with lights on, ZZ stays to his ~80% of the tank and keeps cruising it whilst Zyazyulya chose a "safe" spot and usually stays put unless chased out every now and then or food is served. Then they feed happily side by side while it lasts.

As for hierarchy, the RTC in the tank is the boss and lets anyone know who forgets or simply just in case.

One can watch videos of the two Zungaros here (page 10, Tank 2, 3 vids) http://www.planetcatfish.com/forum/view ... &start=180

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Still very tempted to move one of mine into one of my larger Ponds. But he is soooooo precious to me & virtually impossible to get here in the UK. My RTC /TSN Hybrid is very aggressive, badly damaged by 28" L. Mammoratus & worried it might attack my Jau.

I assume you have completed your move successfully.

In my 4500 gal, ZZ is the alpha, Zazula is the beta over all the rest.

Tank 22, 4500 gal, Mar-Apr 2016, "aggressive" community, RTC 9x, Jau catfish 2x, silver arowana 3x, peacock bass, paroon shark 6x, pacu 7x, TSN 3x, TSNxRTC hybrid catfish, TSNxMarbled Pim hybrid catfish, Apurensis catfish

(missing new additions RTC, TSN, TSNxRTC, Marbled Pim, arowana, barramundi; minus one paroon)

Incredible videos Viktor. Thanks for sharing.

I’ve missed this stuff so much ... love these videos. Those jau’s look fabulous...I never had any luck with my one who died in a heating accident many many moons ago.

Thank you guys. You are my teachers and role models.

On the subject of Jau’s .... check this out ! Jau footage starts at 10.20 so you can skip most of the annoying kid making the video
https://youtu.be/SdyjuJU0ekQ[/youtube]

Thank you for that. Yeah, that's the Shedd Aquarium Jau catfish, that's allegedly 20+ years old and 5'-6'. Mine 3-footers are babies next to this behemoth.

Any Updates Viktor?
Mine has now hit the 32" mark and is an absolute Beast !!
Any updated photo's?

Well, well, look what the cats dragged in...

Good to know, Rob. Thank you. You gotta update your jau thread(s).

It's all here bro https://www.monsterfishkeepers.com/foru ... st-7892504

Ours are notably over 3 feet now. I am about to update the MFK thread with a video too. I have almost had enough of their bickering. If one local Public Aquarium gives me a good price on the 1"-2" smaller and 4 years younger male Zazula, I may let him go. I'll probably ask for 2-3 grand and see.

A quick update. After tolerating 10 years of problems and bickering, ZZ had been adopted out a year or so ago. Zazula rules its tank now. Currently about 45".

Spectacular!!!