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Brassy Jumprock

Started by Michael Wolfe , Oct 22 2011 10:59 PM

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13 replies to this topic

#1 Michael Wolfe

Board of Directors

North Georgia, Oconee River Drainage

Posted 22 October 2011 - 10:59 PM

Sharing a photo of a guy that has been thriving in a tank and keeping the sand nice and clean in a tank full of brown darters... He not only sifts sand, but picks frozen mysis or brine right out of the water column.

I love the way that suckers sit on their fins like that... just slightly touching the sand.

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#2 Guest_EricaWieser_*

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Posted 22 October 2011 - 11:35 PM

That is neat. My Elassoma gilberti do that too, with just the tips of their pelvic fins touching the ground.
This one is doing that pose: http://gallery.nanfa...mber 2.jpg.html
and the male in the back in this photo, too: http://gallery.nanfa...lberti.jpg.html

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#3 Guest_UncleWillie_*

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Posted 23 October 2011 - 11:55 AM

Nice photo, Michael. I'm glad it is doing well. My striped jumprock was a surprisingly good aquarium fish. I gave it plenty of current and sand, and constantly sifted through the sand and made very loud popping sounds when sucking algae off of the rocks of the glass. These pops were loud enough to wake me up at night. I am going to get my hands on one more in the next few weeks.. PS, how big is your fish? At first glance I thought it looked a bit more like a striped jumprock as opposed to a brassy.

Edited by UncleWillie, 23 October 2011 - 12:00 PM.

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#4 Guest_gerald_*

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Posted 23 October 2011 - 03:56 PM

That was my impression too. Head looks too long/low for a brassy, and the light stripes between the dark ones are relatively narrow. Striped JR stays smaller than brassy, so really it's a better aquarium fish.

. PS, how big is your fish? At first glance I thought it looked a bit more like a striped jumprock as opposed to a brassy.

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#5 Guest_UncleWillie_*

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Posted 23 October 2011 - 08:18 PM

Thanks for a bit more conformation, Gerald. I didn't want to flat out say that it wasn't a brassy. Michael, telling the difference between very young brassy jumprocks and small striped jumprocks will only ease with practice. There are a few subtle differences (as described in the Freshwater Fishes of S.C.) but with enough fish in hand, you will be able to tell the difference by just overall appearance and shape of the fish. The only reason I know is because I've had a ton of practice over the last two years.

I'm really glad your fish is doing well. I hate how many suckers tend to dwindle in tanks, but these guys seem to be better off than most. And like Gerald said, their small adult size is a plus. I may have to look into feeding mine shrimp as well. Mine has solely been fed bloodworms and the occasional earthworms (and of course algae in the tank), but I recently have added some sinking pellets. Every couple of mornings the sand in the tank is totally pushed and piled up on one side of the tank. A few days later it will be pushed up to another side. They are real earth-movers when they get in a sifting mood.

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#6 Michael Wolfe

Board of Directors

North Georgia, Oconee River Drainage

Posted 23 October 2011 - 09:04 PM

I am not positive of the identification, so am more than willing to listen to y'all. This fish was caught in the same location where we had previously taken a juvenile that keyed out as a brassy... So I made the assumption... And you know what they say about that. As far as eating and size... He seems to eat everything offered and sifts sand a lot. He has grown a little since captured a full year ago, is probably six inches TL, and as you can see he is not sunken bellied at all. I did not think about just offering shrimp pellets... They would soften and I am sure those gill takers would pick up the particles.

Either write something worth reading or do something worth writing. - Benjamin Franklin

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#7 Guest_jblaylock_*

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Posted 26 October 2011 - 07:45 PM

How big will that fish get Michael?

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#8 Michael Wolfe

Board of Directors

North Georgia, Oconee River Drainage

Posted 26 October 2011 - 10:20 PM

How big will that fish get Michael?

Probably too big, and I should have restrained myself... but at 5 inches he was too cool... and he has only grown an inch in a year... and he still looks healthy... so maybe I have a few years before he gets to be a foot or more... and I will have to have him in a large stock tank outside (which is at least doable here in Georgia... I have several stock tanks now).

But to answer your question directly... Fritz's book says...
Striped Jumprock adults 6.1-11.0 inches
Brassy Jumprock adults 9.4-18 inches

So if I am lucky he will stay at 10 inches or so... I can maintain that in my 75 quite easily... have had a Bluehead Chub that big in there with no problem.

Either write something worth reading or do something worth writing. - Benjamin Franklin

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#9 Guest_farmertodd_*

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Posted 27 October 2011 - 10:09 AM

I had 2 blacktail redhorse that went 14-15" in a 75 and it was never a problem. Man, I miss those fish.

Can't wait to have the opportunity to try some of these guys too. Good stuff!

Todd

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#10 Guest_jblaylock_*

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Posted 27 October 2011 - 12:20 PM

I have thought about keeping a small white sucker or hognose, but I've been scared of the size.

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#11 Guest_Yeahson421_*

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Posted 28 October 2011 - 06:56 PM

I have thought about keeping a small white sucker or hognose, but I've been scared of the size.

Although the white sucker's adult size is daunting, mine's growth has significantly slowed since he hit about 6 inches.

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#12 Guest_jblaylock_*

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Posted 30 October 2011 - 02:44 PM

It makes me with I would have kept a Roanoke Hugsucker that we caught at the convention. I assumed they get large also, but that isn't the case.

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#13 Guest_rahunt_*

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Posted 11 November 2011 - 04:48 AM

The fish looks really happy on the picture

It sounds like a useful animal, especially when it keeps the sand clean and after all they don't become too big. Very nice option to keep the tank clean

(although you said it's loud? I cannot imagine a fish being that loud!)
Do there exist more breed except for Brassy Jumprocks and Striped Jumprocks?

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#14 Michael Wolfe

Board of Directors

North Georgia, Oconee River Drainage

Posted 13 November 2011 - 07:34 PM

The fish looks really happy on the picture It sounds like a useful animal, especially when it keeps the sand clean and after all they don't become too big. Very nice option to keep the tank clean (although you said it's loud? I cannot imagine a fish being that loud!)
Do there exist more breed except for Brassy Jumprocks and Striped Jumprocks?

Yes, there are several other jumprocks... and I think maybe you got something worng in the translation... I never said "loud"

Either write something worth reading or do something worth writing. - Benjamin Franklin