About these forums, are the various aspects of husbandry provided within. It is always great to receive multiple perspectives regarding the captive husbandry of a specific specimen and I enjoy seeing people ask questions and receiving sage advice, prior to acquiring a desired specimen.
I had the privilege of speaking with Tyler via telephone yesterday and I am certain he harbors the knowledge to maintain a conducive aquatic environment for a C. insculpta, as he has been working with discus and fresh water rays for sometime now, both considered to be somewhat difficult to maintain in the aquaria, and should have no problem maintaining appropriate water chemistry and filtration.
I greatly appreciate you posting your experience, as I have known others who have incurred the same problems, though I have often associated such with the acquisition of specimens in poor condition.
As I stated within my earlier post, water quality should never be compromised, but sudden changes of water chemistry are not going to impact a turtle in the same manner such would impact fish.
The primary problem I have noticed most people incur, in regards water quality and C. inscuplta husbandry, is over feeding turtle, which will contaminate the water quite quickly, requiring a higher level of filtration and more frequent water changes. Also, should your charge arrive in a compromised state, as many often do, it is possible to continually re-infect the aquaria if special attention is not given to the filtration system, as harmful bacteria may colonize in such, creating a cycle of recurring infections.
I know of several people who add salt to the aquaria of C. insculpta, but this is not entirely necessary.
Here is what I have found to be the most informative link, regarding the captive maintenance of C. insculpta, anyone wishing to acquire one of these turtles should review the material contained within carefully and it makes fo an excellent read for those who have been keeping the species for years:
http://www.carettochelys.com/carettochelys/behavior.htm#caret_water
Best regards,
Jeff
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Jeff Snodgres
University of Arkansas
snodgresjeffreys@uams.edu
501.603.1947