When fish die, do they sink or float?

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S

Sarmo

Jack Dempsey
MFK Member
Oct 27, 2011
269
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31
SouthWest MT
weird question i know but i have my reasons. i just lost a LSN that had been in my tank for months. no damage except a half bit off tail fin that happened a month ago. i am trying to figure out who might have killed it. i have bichirs and a black arowana that may have been the culprit but i'm starting to think it may have been my Royal pleco. i have seen the royal ram fish so hard that you could hear the crack when he hit them. the LSN was smaller than the royal....

any thoughts?
 
most fish sink at first and the once they start to decompose (which happens really fast) the gas makes them float. Then again if they died with a full swim bladder I guess they would float from the start.
 
If LSN = Lima Shovelnose, then they dont even have swim bladders. Fish that have swim bladders, that die with them intact, will float for a bit, then sink. If they become bloated, they will float again. Fish without swim bladders do the same, minus the first step of floating for a bit.
 
Sad story, lms are pretty hardy fish. One time i moved my 6" and his side fins got stuck in my net, i did everything to get him out and after 4 minutes i had to cut my net, put him back in tank and was fine.

#1 S. Vettel
 
yes, it was a lima shovel nose. +1 on the sad story, i miss the fish. it was cool the way it swam and especially the way it would hold itself in place.
sorry for my ignorance- i didn't know LSN didn't have swim bladders.
 
Neither,mine seem to always wind up in some hard to reach spot within the tank.
 
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