Jump to content


Photo

Crayfish, Bachman Run Lebanon County PA


  • Please log in to reply
5 replies to this topic

#1 truecrimson

truecrimson
  • NANFA Member
  • Leb-A-non, PA

Posted 03 June 2017 - 09:19 AM

Dip netted up a couple of crayfish.  I am not sure I got the correct photos for identification, but I am new at this.  I wouldn't mind having a few in my tank once it is up and running, if they are compatible with whatever sunfish I end up with, so I'd like to make sure they are not threatened or endangered,  I'm sure they aren't, but I'd like to confirm it before I bring any home.

 

Attached File  06022017SmallCrayfishDorsal.jpg   262.77KB   0 downloads

 

Attached File  06022017SmallCrayfishVentral.jpg   261.24KB   0 downloads

 

Attached File  06022017LargeCrayfishDorsal.jpg   293.53KB   0 downloads

 

Attached File  06022017LargeCrayfishHead.jpg   102.46KB   0 downloads

 

Attached File  06022017LargeCrayfishVentral.jpg   91.72KB   0 downloads

 

 



#2 Matt DeLaVega

Matt DeLaVega
  • Board of Directors
  • Ohio

Posted 03 June 2017 - 08:26 PM

Cant help you on ID's but on keeping them I can suggest an abundance of hides. When they molt, they are helpless for hours. Even small fish can pick them apart during the first several hours. They are like jello and cannot move at all until their exoskeleton hardens a bit. Then vice versa, if you have small "sleeping" fish, Crayfish can be opportunistic predators when they are in fighting shape. And when they molt is when they grow. So that 2 inch crayfish that wasn't a threat to any fish can nearly double in size in one molt. I have had less trouble with crays killing fish than the other way around, but with enough structure you should be fine.


The member formerly known as Skipjack


#3 truecrimson

truecrimson
  • NANFA Member
  • Leb-A-non, PA

Posted 05 June 2017 - 11:04 AM

I used to have more issues with crays eating fish.  Back in high school, in the late 1980's my best friend and I kept tropical fish.  I'm originally from San Antonio, TX, and the big supermarket chain, HEB, would periodically get live crayfish in the seafood section.  No idea what species, but they were red and big.  They loved to grab tropical fish that swam too close. 



#4 truecrimson

truecrimson
  • NANFA Member
  • Leb-A-non, PA

Posted 05 June 2017 - 11:13 AM

As a side question, is it better to post all identification needs from a single trip in a single thread in the ID help section like I did with the Quittapahilla thread, or to post the plants and invertebrates in their own threads in their own sections like I did here?



#5 Matt DeLaVega

Matt DeLaVega
  • Board of Directors
  • Ohio

Posted 05 June 2017 - 05:22 PM

The ID section is primarily aimed at fish. I don't think there were ever any real rules on what belongs where aside from fish ID. So keep doing what you are doing.


The member formerly known as Skipjack


#6 dmarkley

dmarkley
  • NANFA Member
  • Lower Susquehanna River

Posted 09 June 2017 - 08:14 AM

Crayfish in an aquarium are evil.  They will excavate your gravel.  They will shred your plants.  They will eat your fish.

 

Just my two cents!


Susquehanna River Drainage




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users