More than one Serrasalmus elongatus in one tank ?
- Thread starter toG
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It's generally a bad idea to shoal any serrasalmus species together in anything smaller than a swimming pool. Some people have had success with S. maculatus, S. spilopleura, and S. geryi in large home aquaria. Other species in the serrasalmus genus generally don't take kindly to cohabitation.
nah. not really. They don't shoal like Pygocentrus piranhas, and being little doesn't matter. If you've already got them I would trade them back. If not, then I wouldn't waste my money. They're going to kill each other.
It usually helps to hear the same thing from more then one person so just incase you were doubting diogenes, he's 100% right, it won't work
i'm not right 100% of the time (usually more like 99.9% just ask my wife), but this particular cohab is ill advised. 
the tank dimensions you gave are pretty big if in inches, and not so much in centimeters. Are they inches or centimeters?
If it's inches you could try it. It probably won't work, but I guess it wouldn't be completely crazy. Have you ever kept any kind of piranhas before?
I've told this story a million times, but at a local LFS there were 2 S. rhombeus in a 20g long tank with a divider. They were like 1-2" inches max. Little babies. Rhom A jumped out of the water, squeezed his body between the glass lid and the top of the divider, and eventually emerged, triumphantly, into the other half of the tank, where he promptly devoured the tail and all fins of Rhom B. The LFS employee realized what was going on at this point, and removed the rhom A from the rhom B's half of the tank, and placed him back in the other side. A few weeks later rhom B healed up, and exacted his own form of street justice on rhom A except this time, rhom B straight up killed rhom A.
The moral of this story is that serrasalmuses friggin hate each other. They will go to extreme measures to kill each other if given half a chance, even when they're babies. FYI.
the tank dimensions you gave are pretty big if in inches, and not so much in centimeters. Are they inches or centimeters?
If it's inches you could try it. It probably won't work, but I guess it wouldn't be completely crazy. Have you ever kept any kind of piranhas before?
I've told this story a million times, but at a local LFS there were 2 S. rhombeus in a 20g long tank with a divider. They were like 1-2" inches max. Little babies. Rhom A jumped out of the water, squeezed his body between the glass lid and the top of the divider, and eventually emerged, triumphantly, into the other half of the tank, where he promptly devoured the tail and all fins of Rhom B. The LFS employee realized what was going on at this point, and removed the rhom A from the rhom B's half of the tank, and placed him back in the other side. A few weeks later rhom B healed up, and exacted his own form of street justice on rhom A except this time, rhom B straight up killed rhom A.
The moral of this story is that serrasalmuses friggin hate each other. They will go to extreme measures to kill each other if given half a chance, even when they're babies. FYI.
if those measurements are in cm then it translates to 64 x 24 x 24 in inches
if they are inches you could realisticaly keep 2 elong's in that but be prepared to loose one if those are cm you can only fit 1 in there
if they are inches you could realisticaly keep 2 elong's in that but be prepared to loose one if those are cm you can only fit 1 in there