black vs silver arowana care

  • We are currently upgrading MFK. thanks! -neo
E.C. said:
Pole wars again, hey don't derail the thread for the poor guy.

Hi Colefishing, let me just state it out for you,

you probably know the difference in price, juvenile colors of those Aros.
They have the same growth rate, same diet.
Same tank requirements, they grow as much as 3feet, some say 4, but that's exeptional really, haven't seen one but if there is, is there anyone kindly enough to post a pic?
Both are skittish, but Black's is much more skittish than any arowana's out there.
B.A. (They said) has some immunity developing D.E. but still, they can get it, or the S.A. they eventually will get it. Best chances to avoid it is to have em in a pond and control their diet.
So what I'm saying is, yes they can be housed within a 6x2x2, but really, for me it will look cramped and also to properly housed them you really have to go for 8x4x4 or better, larger or a pond...

For the Clown Knife, some have success stories regarding their stocks, but it boils down to the fish's personality.
Click to expand...

theres some nice videos of a 4 foot silver on youtube http://www.youtube.com/watch?v=0nO9r6Z71VI http://www.youtube.com/watch?v=sosdj2bPjIE
 
Not much difference in caring for either black or silver. When young, extra care is needed, but both require the same. Blacks tend to grow a bit slower then silvers but can grow rapidly. One of my blacks grew and inch per month up to 25" whereas average growth for a silver is about 1 1/2" per month. Wild collect specimens in the 8-12" range do tend to grow slower then blacks grown in tanks from babies. Either way you'll have about the same amount of time with the 180g before you should upgrade.

As far as how it would get along with the knife fish, well that could be anywhere from great to a disaster. Best to be able to separate the two if needed.

I would also have to disagree with blacks being more skiddish. IME blacks are much more catious the silvers, but get spooked far less often then silvers.
 
Blacks are more sensitive to hard water, their fins tend to tear more easily, especially if they are wild caught. They grow slower than silvers but not by too much.
 
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