Name: Potamotrygon histrix
Origin: Parana/Paraguai River Basins
I owned two hytrix rays in a 830 liter aquarium along with a 60 cm silver arowana. I had the rays for over 3 years and the arowana for about 2 years. I've also kept motoro rays. I strongly recommend motoro's over hytrix. They're a hardier ray and have a sand paper like disc, as opposed to the soft disc of a hystrix. I no longer have these rays or arowana. My male ray killed the female during courtship and the arowana and male ray were sold to a friend. I don't recommend keeping a pair (male and female) of rays in an aquarium of too big of size. I and many others I've read about have lost the female because the male was too aggressive. Smaller tanks will discoruage mating.
I personally think this is the easiest stingray to keep. It is fairly inexpensive compared with other rays and does not grow as large. I kept mine for about a year in a 240 L tank with catfish and an orange pike, and had no problems, until a piece of lava rock fell on it and it died! It ate bloodworms, frozen fish, live shrimp and sometimes live goldfish. I recommend a dark, fine substrate to enhance this ray's colour.
I've had my hystrix for a little over a year now and it's been a lot easier than my retic's were to care for. She has never had a problem eating and just seems to be a rather hardy ray. If you have a pair you just need to make sure the male is quite a bit smaller than the female, so she won't be injured during courtship. I have mine in a 470 L with a black arowana and 6 silver dollars.
An an illegal import in Australia, but not as expensive as the Potamotrygon motoro. They still have a price minimum of $1000 AUD. They aren't that attractive and loved by collectors due to the lack of pattern and colouration overall.
Got some experience to share for this page? No registration necessary to contribute! Your privacy is respected: your e-mail is published only if you wish so. All submissions are reviewed before addition. Write based on your personal experiences, with no abbreviations, no chat lingo, and using proper punctuation and capitalization. Ready? Then send your comments!