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Thread: Potomotrygon castexi

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    Cthulhu138's Avatar
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    Potomotrygon castexi

    Here's a photo I just found of my Otorongo Ray (Potomotrygon castexi) in his new home at The New England Aquarium. They keep him the "Primitive Fish" display with a large lungfish, alligator gar and an arowana.


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    Did he get to big for you or did u just donate him he's a beautiful fish

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    I had to move and couldn't get the tank and the fish moved at the same time. Freshwater rays are very sensitive and they wouldn't have survived the move. Had no choice but to donate them. I also gave them a P.motoro that's in their large Amazon display. Oddly, I had to teach them how to keep them alive. They'd killed every previous FW ray they'd ever got in short order.

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    sarracenia lover dionae's Avatar
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    Thats awesome. So...what's the secret to keeping them alive?

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    Cthulhu138's Avatar
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    It was mostly what they were trying to feed them. They'd been feeding them frozen silversides so, they'd basically been starving them to death.

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    sarracenia lover dionae's Avatar
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    What do they prefer to eat? How big was the tank you had it in?

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    I fed mine live shiners, nightcrawlers, live crayfish and fresh frozen tiger shrimp supplemented with the same vitamin and calcium powders I used for the reptiles. They lived in a custom 4' x 6' tank I designed specifically for rays.

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    sarracenia lover dionae's Avatar
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    Man, youre getting me all interested. I like strange pets. I once had a skunk for a pet lol. Spray glands removed, of course.

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