And there are confirmed reports of Serrasalmus piranhas have been caught in U.S waters. Perhaps you should do some research first?
Piranha in foreign waters
- Thread starter rain21
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I think RBP can adapt to different waters very quickly. I had them in different waters, some other fish died in municipal water because it has higher amount of chlorine, but piranha survived and adapted within an hour or less. So I believe for piranha, just need the required temperature. Other water parameters are least concerned.
Don't make a habit out of making your fish "adapt" to chlorine.
Treat your water.
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Treat your water.
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yes, but in US they caught more RBPs in rivers. And also I'm not talking only about the rivers in US.
Since it is difficult to breed rhoms at home, people have only few rhoms at their homes, and if they are out of the hobby, they can sell them.
But RBPs can breed easily at home and they lay big amount of eggs and get thousands of fry, so the probability of someone releasing them into a local river is much more than releasing rhoms into a river. Also rbps get bigger soon and they will become the dominant predators of rivers in no time.
The only threats to the piranhas (regardless of what species) in foreign waters is the cold water temperatures. As I've mentioned in my last post is that there are confirmed reports of Rhom piranhas being caught in United States waters suggested that Rhom piranhas are adaptable to any waters (or at last during summer time). Also I believe that Rhom piranhas are adaptable in their native range and adapt to different kinds of waters such as soft blackwater to hard whitewater.
I think you are confused that RBP are that easy to breed at home. It's very challenging to get them to spawning at home. It's a doable but not that easy. The reason why we caught more RBP in the rivers because they are dirty common than Rhom piranha but it doesn't change the fact that Rhom piranhas being caught in US. I doubt that piranhas will become the dominant predators of rivers in no time. The RBP and other piranha species had a chance to reproduce in U.S waters but it never happened.
I am pretty sure American Alligators would probably munch on the piranhas just like their cousins the caiman.
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Along with largemouth bass and peacock bass (a known predator of piranha in the native range)...not mentioned to larger catfish. The piranha' body design is very similar to their natural prey aka the sunfish.
then why US authorities banned keeping piranhas in warmer states ?
there are many countries where the government prohibited keeping piranhas in captivity except zoo parks.
Maybe in US, RBP is very common, but where I live, we have to pay premium price for RBP. They are not common here. And I heard once, in Thailand, a person paid $200 for a 3 " RBP and he said it is cheaper.
people just release few piranhas to rivers and most probably it won't make a difference. But if people release large number of piranha population to a river, that will be a threat for sure. By "large amount" I mean thousands and that can be happen only with RBP.
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