im new here.. who ken give me more info about SERRASALMUS NATTERERI, are they agressive ? everything about them is wellcome 
thx!
thx!
SERRASALMUS NATTERERI
- Thread starter dansrk
- Start date
Welcome to mfk
Pygocentrus is the genus your looking for, not Serrasalmus
From the sticky:
Scientific Name: Pygocentrus nattereri
Common Names: Red Bellied Piranha, Red Belly, Red
Distribution: Abundant and widespread throughout the rivers and water ways of South America.
Size: 10 inches (Captive), 12 inches (Wild)
Captivity: 20 gallons per nattereri is the common rule. However surface area plays more of a role than volume. As a shoaling fish, it is recommended that they be kept in at least groups of four. A powerful and efficient filtration system is needed. A temperature of 22-30C, and pH of 5.5-8.0 is required.
Personal Comment: These are one of the most durable and forgiving piranhas, and highly recommended for the beginner. However they are also one of the more skittish and nervous piranhas and may hide a lot when first introduced to the tank. It is recommended to give them plenty of hiding spaces, dim light and a good water current.
Pygocentrus is the genus your looking for, not Serrasalmus
From the sticky:
Scientific Name: Pygocentrus nattereri
Common Names: Red Bellied Piranha, Red Belly, Red
Distribution: Abundant and widespread throughout the rivers and water ways of South America.
Size: 10 inches (Captive), 12 inches (Wild)
Captivity: 20 gallons per nattereri is the common rule. However surface area plays more of a role than volume. As a shoaling fish, it is recommended that they be kept in at least groups of four. A powerful and efficient filtration system is needed. A temperature of 22-30C, and pH of 5.5-8.0 is required.
Personal Comment: These are one of the most durable and forgiving piranhas, and highly recommended for the beginner. However they are also one of the more skittish and nervous piranhas and may hide a lot when first introduced to the tank. It is recommended to give them plenty of hiding spaces, dim light and a good water current.
cepon3;1943094; said:
Yes, I find it odd though. I just went to the library and picked up "Piranhas in the Aquarium" by Wolfgang Schulte. Granted the book was written in 1988, but throughout the whole thing he refers to red bellied piranha as "SERRASALMUS NATTERI". Is it because classifications have changed since then?
I know what you mean, i have always known them as pygocentrus but on a recent visit to london aquarium they also had them down as serrasalmus
In all the older documentation they will be called Serrasalmus. a good way to check how update the book is find information on black piranhas, They will be called Serrasalmus Niger in older books and then it was revised to Rhombeus in newer books.
cepon3;1943683; said:
This book was in published in 1988. They refer to serresalmus Rhombeus, so it must have been in the transition period.
cepon3;1944611; said:
Yes, I read in here just now that the book was originally written in German, and the Germans own the copyright. This English translation was published (at least in my case) in 1988. The actual book could have been written at any time, since it generally takes time to translate accurately into other languages like this book has. I was actually very surprised, the flow of the book was quite natural compared to most other translations I've read (like the rough instructions translated from Chinese, lol).
All in all, an excellent book, you should definately check it out!
thx all you for the answers.. i'w found on the net to buy some SERRASALMUS NATTERERI (is wrieten like this) so thats why i'w ask for more info.. but im afraid that the italian post realy suck! order on 02 this mounths and they did not arrived yet 