Mata Mata turtle growth thread

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That is some good progress. I'm still struggling getting my 12" to switch to frozen. He usually spits it out then refuses to eat. I have done some significants fasts with no luck. I wish i could because the live food bill is rediculous.

My guy ate thawed silversides within an hour of shipping....how long before a Mata the size of mine out grows a 24" wide tank in your experience? Obviously it is still tiny in there now and could still be in 40 gallon breeder for quite a while....
 
My guy ate thawed silversides within an hour of shipping....how long before a Mata the size of mine out grows a 24" wide tank in your experience? Obviously it is still tiny in there now and could still be in 40 gallon breeder for quite a while....

You have a couple years yet. Mine grew pretty steady for the first 3 to 4 years. Then sprung up all of a sudden in the 5th. Went from 8 inches to 12 in one year.

I started mine in a 10g with 6" of water then a year later i bought a 75g and gradually increased water depth, then moved him to a 125 a year later. Then to my 220g where he stayed at 12" until this summer.
My opinion is as long as he can comfortably turn around and there is some room to at least walk along the bottom he should be fine. I would try to keep the length at least twice his shell length though.
 
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Here is the unboxing of my male. And there is a significant difference in size between him and the female.


Size comparrison and notice how big they are in that 300g stock tank.


Permanent pond.
 
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Here is the unboxing of my male. And there is a significant difference in size between him and the female.


Size comparrison and notice how big they are in that 300g stock tank.


Permanent pond.
Great vids!! I see a basement pond in my future....hopefully three or four years. I will adapt this tank to it as it grows.....how easy to sex these turtles?
 
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Great vids!! I see a basement pond in my future....hopefully three or four years. I will adapt this tank to it as it grows.....how easy to sex these turtles?

Honestly that was the hardest thing. Looking at pictures and asking on a facebook group, I was under the impression I had a female (my original). Now that I have the three It is very easy to see the differences.

You won't be able to start to differentiate until around 8" but as I said it may still be difficult. I am unsure what the difference is between the two different locals being Amazonian (yours) and Orinoco (mine), but the tail is longer and thicker at the base on the males when compared to the female. Based on pictures and the location of the cloaca relative to the carapace, and general tail length I was under the impression mine was a girl.

From what I have read on other forums and scouring the internet, males don't get as large as females, they have longer tails, and the triangle on their head stops there (one source accurate with my trio). The Plastron also is more concave.

Females get larger/wider than males, their cloaca is closer to the body, the tail isn't as long or as thick, and the triangle continues onto the neck (one source accurate with my trio). The plastron is not as concave. My opinion it is hard to compare without a representative of both sexes present. If you look on the internet you will see pictures.

The problem I found was in the pictures including what others with more experience told me; was that my male had a really short tail. It wasn't until he flashed me a at 12" that I confirmed without a doubt he was a boy. Comparing him with the older larger male and to the female, I can see the difference. It is my assumption that Amazonian males grow longer tails than the Orinoco local does.

I have read that around 12"- 14" their growth slows down significantly and it can take many years to reach the 20" behemoth I purchased. I don't know how accurate that is but it follows what one would expect to be normal growth patterns of sexually mature animals. My original male seems to be following that pattern, he hasn't really grown much in the past two years. He hit 11" at 5 years, two years later he is only 12.5" now. Also Amazonians don't get as large as the Orinoco. They max out somewhere around 18"-20"; where the Orinoco get up to 22"-24".
 
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Honestly that was the hardest thing. Looking at pictures and asking on a facebook group, I was under the impression I had a female (my original). Now that I have the three It is very easy to see the differences.

You won't be able to start to differentiate until around 8" but as I said it may still be difficult. I am unsure what the difference is between the two different locals being Amazonian (yours) and Orinoco (mine), but the tail is longer and thicker at the base on the males when compared to the female. Based on pictures and the location of the cloaca relative to the carapace, and general tail length I was under the impression mine was a girl.

From what I have read on other forums and scouring the internet, males don't get as large as females, they have longer tails, and the triangle on their head stops there (one source). The Plastron also is more concave.

Females get larger/wider than males, their cloaca is closer to the body, the tail isn't as long or as thick, and the triangle continues onto the neck (one source accurate with my trio). The plastron is not as concave. My opinion it is hard to compare without a representative of both sexes present. If you look on the internet you will see pictures.

The problem I found was in the pictures including what others with more experience told me; was that my male had a really short tail. It wasn't until he flashed me a at 12" that I confirmed without a doubt he was a boy. Comparing him with the older larger male and to the female, I can see the difference. It is my assumption that Amazonian males grow longer tails than the Orinoco local does.

I have read that around 12"- 14" their growth slows down significantly and it can take many years to reach the 20" behemoth I purchased. I don't know how accurate that is but it follows what one would expect to be normal growth patterns of sexually mature animals. My original male seems to be following that pattern, he hasn't really grown much in the past two years. He hit 11" at 5 years, two years later he is only 12.5" now. Also Amazonians don't get as large as the Orinoco. They max out somewhere around 18"-20"; where the Orinoco get up to 22"-24".

WOW Thanks!! How can you tell mine is Amazonian? I am hoping for Male but time will tell!!
 
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WOW Thanks!! How can you tell mine is Amazonian? I am hoping for Male but time will tell!!

Does yours have a dark neck (underneath): Amazon or a light neck: Orinoco?

The pattern on the carapace and the general shape of it. More squared shape in Amazon, more Oval in Orinoco.

The shell color is generally a little more red Orinoco, and yellow on Amazons.

Amazons have a lot more color and patterns.
 
Does yours have a dark neck (underneath): Amazon or a light neck: Orinoco?

The pattern on the carapace and the general shape of it. More squared shape in Amazon, more Oval in Orinoco.

The shell color is generally a little more red Orinoco, and yellow on Amazons.

Amazons have a lot more color and patterns.
I will have to yank him/her out of the water later and check....I will post pics.
 
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Does yours have a dark neck (underneath): Amazon or a light neck: Orinoco?

The pattern on the carapace and the general shape of it. More squared shape in Amazon, more Oval in Orinoco.

The shell color is generally a little more red Orinoco, and yellow on Amazons.

Amazons have a lot more color and patterns.

Does yours have a dark neck (underneath): Amazon or a light neck: Orinoco?

The pattern on the carapace and the general shape of it. More squared shape in Amazon, more Oval in Orinoco.

The shell color is generally a little more red Orinoco, and yellow on Amazons.

Amazons have a lot more color and patterns.

Here is an undercarriage shot!!! What do you think???IMG_1219.JPGTURTLE BOTTOM.jpg
 
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