Liosomadorus oncinus - Problem with one!

Caol_ila · Post by **Caol_ila** » 09 Jan 2003, 19:59

Hello guys i'd like your opinion on this:

Today at the shop i stumbled over a bunch of dorads...turning out to be Oncas...about 6-7 cm for 16 euro...now i know they are from rio negro...but im also the opinion that 16 is really cheap for them...dyou think they could stand a ph7kh7gh14 tank without nitrates? Or better say will the fish and i be happy with that? I always thought Doradidaes were pretty undemanding concerning water chemistry if it is w/o NOx!?

Post by **Silurus** » 09 Jan 2003, 20:15

Shouldn't be a problem. I've seen them kept in similar water conditions as you described. With that kind of price, are you sure that these aren't Liosomadoras morrowi instead of L. oncinus? The former are usually offered at around that price, while the latter usually go for 2-3 times that...

Heok Hee

Caol_ila · Post by **Caol_ila** » 09 Jan 2003, 20:39

dyou have any pics to compare the two?
It was indeed only labeled as jaguarcatfish

Post by **Silurus** » 09 Jan 2003, 21:06

Sure, they are up on the Cat-eLog:
Liosomadoras morrowi: http://www.planetcatfish.com/ilibrary/a ... /449_1.htm
L. oncinus: http://www.planetcatfish.com/ilibrary/a ... /173_1.htm

Heok Hee

Caol_ila · Post by **Caol_ila** » 09 Jan 2003, 21:18

ahh i looked at doradidae...cauz they are in that group in the mergus...im a bit tired sorry...
well the fish looked like the more contrasted one of the oncinus...how much difference in juv color with the morrowi?

Post by **Silurus** » 09 Jan 2003, 21:24

Don't really know. I haven't kept small L. morrowi before. I have two L. morrowi right now (about 10 cm long), and they seem to get along well in the slightly hard water here in Ann Arbor. Not fussy eaters, plus they get along well with tankamtes (Mystus leucophasis, Pimelodus blochii, Synodontis nigrita and Neolissochilus sp.) and each other, save for the occasional fight.

Heok Hee

Caol_ila · Post by **Caol_ila** » 09 Jan 2003, 21:30

i think ill give it a try and get one...ill put him with my Doradidae sp.
They arrived monday and none has died so far he told me...but i dont know if they eat...

Post by **Silurus** » 09 Jan 2003, 21:33

If they are anything like L. morrowi, feeding them shouldn't be a problem. I'm giving mine mostly trout chow. They come out and gorge themselves during feeding time.

Heok Hee

Caol_ila · Post by **Caol_ila** » 11 Jan 2003, 15:07

Hi!

Thx for the quick help!

I went to the shop and bought 2 of which i think its m/f...not really experienced sexing them but the analzone looked quite different.
Im pretty sure after cheking all pics that its oncinus, also the guy at the shop said his retailer said they were true jaguars...now im broke

They had one with a completely torn off pectoral...they wanted 8? for it mebby ill check back and try get it cheaper. Imho noone will buy such a damaged fish...

greetings
C
P.S.: I fed them live white mosquito larvae yesterday and they accepted them.

Caol_ila · Post by **Caol_ila** » 14 Jan 2003, 07:30

Hi!

They seemed ok and now swim in my 125 litre tank. I saw them yesterday both are still doing fine. they roamed the tank and ate some cyclops and bloodworms. They have become much lighter in color with more contrast than at the shop where they were almost completely brown with the dark spots.
Very nice ones im glad i got them!

Caol_ila · Post by **Caol_ila** » 14 Jan 2003, 20:56

I have a problem with one of them!

Today i realized that hes breathing very heavily and one of his eyes is dull.
He also has trouble staying down always drifting to the surface sometimes bottom up...hes not looking good and i have no clue what it is...i fear that i cant save him.
Ph was 6.8-6.9 today so high ph shouldnt be a problem...i guess the fish was allready sick when i bought him cauz everybody told me how hardy they were...hope i can save the poor fellow...

Post by **Silurus** » 14 Jan 2003, 21:09

I hope your oncinus makes it.
I had an equally harrowing experience when I bought my L. morrowi. The person whom I bought the fish from (not a dealer, she was just getting rid of them) double bagged the fish, but they either managed to puncture the bags with their spines or the postal service fouled up and broke the bags somehow.
Anyway, they arrived literally gasping as all of the water had drained out. I thought they weren't going to make it when I put them in the tank, but they recovered after a few hours and have been doing OK since (it's been almost two years since I got them). It gave me a real scare, but I think the cooler air temperatures (about 10-15 degrees Celsius) at that time of the year actually helped to keep them alive long enough for them to make it.

Caol_ila · Post by **Caol_ila** » 14 Jan 2003, 21:21

checking my UNTERGASSER book and talking to yann we think its an internal bacterial infection...have nitrofuranol here...

Caol_ila · Post by **Caol_ila** » 14 Jan 2003, 22:55

its dead

Post by **Silurus** » 15 Jan 2003, 00:43

Sorry to hear that.

Bummer.
At least you still have one.

Caol_ila · Post by **Caol_ila** » 15 Jan 2003, 10:56

hi..just returned from the shop where the refunded me...they said all remaining fish show symptoms and are in quarantine now...the have no real clue but also guess that its an internal bacterial infection.

Caol_ila · Post by **Caol_ila** » 15 Jan 2003, 17:39

Hi!

What should i do with the other one?

I could do a furanol bath for 30 minutes as it is against bacteria...the fish looks fine, but as the other passed away in just 1 day im not sure if i should take the risk to wait for sth to break out!
Opinions would be nice!

TiGrInUs · Post by **TiGrInUs** » 15 Jan 2003, 23:42

yeah sorry to here that...they are cool catfish! A guy i know bred them...i think he was writing something for this site on them? First name Rob.

Caol_ila · Post by **Caol_ila** » 16 Jan 2003, 11:43

Hi!

after thinking a bit and talking to yann again i decided to do a preventive nifurpirinol bath for 30 mintes...the small dude wasnt very happy about it. He was a bit shaken after the treatment, but showed no ill effects later on. He even came out to feed on white mosquito larvae and gamarus...so far it looks good!