Red-tailed v/s Red-finned Black Sharks?

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The red-finned shark is also called rainbow shark? Black with all red fins? I had one of those for years when I was a kid. A robust fish that does not like members of its own species or related species. One to a tank, unless you have a very big tank. I think they are fin nippers.

Red-tailed sharks I've never bought as they always appear to be at death's door at the lfs. Listless, having trouble controlling bouyancy, just not looking like a very healthy fish. Most of the pet shops in my area (New port Richey, FL) are on par with WalMart so their fish are horrible. Don't suppose anybody knows of a good lfs in this area?
 
Red tailed sharks get 5-7 inches long. They should be kept singly. They are very territorial and can get aggressive especially with other bottom dwellers.
 
common names are confusing, how about...

Epalzeorhynchos bicolor (commonly called:red-tailed shark) vs. Epalzeorhynchos frenatum (commonly called:Red-fin shark)

http://www.fishbase.org/Summary/SpeciesSummary.cfm?genusname=Epalzeorhynchos&speciesname=bicolor

http://www.fishbase.org/Summary/SpeciesSummary.cfm?genusname=Epalzeorhynchos&speciesname=frenatum

I would choose Epalzeorhynchos frenatum because they seem to be less aggresive than Epalzeorhynchos bicolor though Epalzeorhynchos bicolor is more colorful. Epalzeorhynchos bicolor is about an inch smaller at 5" while Epalzeorhynchos frenatum reaches a size of 6".

HTH
 
If you cut & paste the entire link (line) it works. I think the AA software is picking up the letters ID and changing it from part of the link to an acronym, therefore breaking up the link.
 
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