Help with Goonch Identification / Heat resistance?

  • We are currently upgrading MFK. thanks! -neo
M

Marcus_H

Gambusia
MFK Member
Feb 1, 2009
206
13
18
Germany
Hello,

well one of our fishdealers here got one nice looking goonc left and i am still interestet in this species. But my biggest problem is, will it survive the summer? It got close to 40 degrees (celsius) around here in july , so my tank heatet up to almost 30 degrees.And from what i've read here, not all bagarius are up for that.


From the identification threat i got this nice pic:

http://www.fotos-hochladen.net/view/quickdiagnostis1bcdklm0o.jpg

and from my fishdealer i got this one of the last bagarius that is left:

http://www.fotos-hochladen.net/view/image117d0qr8hoek.jpg

Problem is: The pic is not that good. Could Be B. Bagarius, Rutilus or Yarelli. The guy labeled it yarelli, but i guess anything that isa not suchus might end up beeing labeled yarelli.

Both yarelli and Bagarius can grow really big, but that is not the problem, i got 300gal so far and am willing to upgrade. But what about the temperature? There seems to be a big difference in B.Bagarius and Yareli when it comes to their tolerance concerning warmer climates. And how much can rutilus take, if that is a rutilus?

Or is the only important thing the oygen? Because since i got an chemical oxydator i can quite easily get those oxy-levels up to 7-8mg/l even when the waters goes beyond 25° celsius.

Greetings
 
Last edited:
My bagirus yarelli is in my basement without a heater and is at 18-28 degrees celsius and does great. He is 6" and is in a 75 gallon with a magnium filter and it has no flow and has had a wide range of tankmates without a problem.
I would geuss yours would be able to thrive in similar condidions. I have heard the species only has a minor impact in the tolaterence of the fish for tempature. I could be wrong but that is my opinion.
 
I'd confidently call that fish a rutilus myself. I kept my rutilus in a tropical setup for over a year and the fish thrived. It only died when I tried moving it from Missouri to Florida; the stress of the move seemed to be too much for the fish. She ate and was very active in my tank, though. 7.8-8 ph, hardness off the charts, 82-84 temp, TONS of current and over 11,000 gph of flow in a 150. I had no way to measure dissolved o2, but I know that it was high. I also made sure that my no3 never went over 20ppm because the tigerfish were sensitive to it, and tried to keep it below 10.
 
MoNsTeR FiS MoNsTeR FiS

Interesting that even without any way of increasing the oxygen level and at such comparable high temperatures, your cat seems to be fine.

C Chicxulub

Yeah ok that sound's more like a mountain river. 11.000gph is massive, especially in only 150gal of a tank. I guess there is indeed no need to measure the o2 there. I got 1050gp/h which is still quite above what is recommended a the minimum (which is 2x the tank mass normally), but of course far from your flow.

NO3 does not get above 5-8ppm from the water faucet and normally does not rise above 10ppm in any of ym tanks so far. PH is the same here, a bit lower, will finishes at 7.6-7.8 after 2 days in the tank.

But how do you know it's a rutilus? and how did you know you had a female?

Greetings
 
Marcus_H said:
But how do you know it's a rutilus? and how did you know you had a female?

Greetings
Click to expand...

I diagnosed my fish through some fairly invasive investigation while I was writing the goonch sticky. Yours looks exactly like mine. As for determining that mine was female, I'll admit that my assignment of gender was arbitrary and was done for no reason beyond the fact that I don't like calling my animals 'it'.
 
You must log in or register to reply here.
MonsterFishKeepers.com
Top Bottom