Silver dollar in black water - Tropical Fish Keeping - Aquarium fish care and resources
 
LinkBack Thread Tools
post #1 of 4 Old 01-15-2012, 01:57 PM Thread Starter
Member
 
nicolaas's Avatar
 
Question Silver dollar in black water

Does some buddy know if silver dollar( metynnis hypsauchen) a black water fish is
nicolaas is offline  
Sponsored Links
Advertisement
 
post #2 of 4 Old 01-15-2012, 06:10 PM
Member
 
Byron's Avatar
 
It so happens that this question came up recently in another thread, so you will find some info there; here's the link to that thread:
Silver Dollar Fish & Blackwater

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
Byron is offline  
The Following User Says Thank You to Byron For This Useful Post:
nicolaas (01-16-2012)
post #3 of 4 Old 01-16-2012, 02:32 AM Thread Starter
Member
 
nicolaas's Avatar
 
Thanks,but they don't talk about Metynnis hypsauchen
nicolaas is offline  
post #4 of 4 Old 01-16-2012, 12:17 PM
Member
 
Byron's Avatar
 
Quote:
Originally Posted by nicolaas View Post
Thanks,but they don't talk about Metynnis hypsauchen
That's because it is not feasible (at least for me) to give a definitive answer. But I can perhaps make some suggestions.

Some fish species occur only in one specific watercourse, for example the coral red pencilfish Nannostomus mortenthaleri is known to be endemic to the Rio Nanay in Peru. Ascertaining the water parameters of this river will thus tell us the preferred habitat for this species. But Metynnis hypsauchen, as I noted in the profile, has a much wider distribution. For example, it occurs in the Guyana's, the upper Amazon basin and the Rio Paraguay south of the Amazon basin. The Amazon basin alone occupies an area as large as the continental United States minus Texas, so we are dealing with a vast area and every type of water.

Several of the rivers draining the Guiana Shield are relatively muddy, what some refer to as whitewater; I won't go into the difficulties of using this name, but it implies rivers that are somewhat "café au lait" in colour, a creamy brown like coffee with milk in it. The Rio Paraguay is basically a clear water river, though it has at least one blackwater tributary, the Rio Negro--not to be confused with the enormous Rio Negro that is a northern tributary of the Amazon itself. So now the problem is finding out which specific stretch of these rivers may be inhabited by Metynnis hypsauchen, and this I do not know. From this information, one may assume the fish occurs in clearwater, perhaps blackwater and perhaps whitewater.

Byron.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
Byron is offline  
The Following User Says Thank You to Byron For This Useful Post:
nicolaas (01-18-2012)
Reply

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Silver Dollar Question LexCorp Freshwater and Tropical Fish 1 03-21-2011 06:40 PM
Silver Dollar Fungus? Mettalikatt Characins 6 02-20-2011 09:32 PM
sick silver dollar? slickscustoms Tropical Fish Diseases 1 11-16-2010 07:06 AM
Silver Dollar with lump :( daftsarn Tropical Fish Diseases 3 06-02-2009 11:16 AM
silver dollar PLECO Characins 13 07-30-2007 05:38 PM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome