What are these?

[smthop93311]

In one of my tanks (my smallest-thankfully) I have these little critters (less than 1 cm in length) crawling on the walls of the aquarium. They are transparent, have about 6 legs on both sides of their body and have two longer appendixes that appear to be antennas (kind of a generic description, I know, but the closest thing I can compare them to are lice). They've multiplied rapidly and seem to interact with each other the same way ants do. They have not attacked any of the aquarium inhabitants. Of course, I can't get a good picture of them (they are moving way too fast!!) Any help identifying these critters is much appreciated.

 

[meowzer]

look up copepods......good thing to have
Hey I see that is your first post....SOOOO WELCOME TO SWF

 

[bang guy]

I would guess Mysid Shrimp.

 

[cranberry]

Sounds like a munnid isopod.
This is a male...

Female...

Male sitting on female waiting for her to molt...

Two males fighting.

 

[meowzer]

LOL...you got it covered there Cranberry...lol

 

[bang guy]

Originally Posted by Cranberry
http:///forum/post/3095140
Sounds like a munnid isopod.
I've never heard them described as being particularly fast though.
Awesome pictures none-the-less.

 

[cranberry]

Ya, that was the only part that didn't fit.... but I didn't know if that was New York fast or Southern fast.

 

[bang guy]

Originally Posted by Cranberry
http:///forum/post/3095191
Ya, that was the only part that didn't fit.... but I didn't know if that was New York fast or Southern fast.
Fair enough!

 

[shrimpy brains]

Originally Posted by Cranberry
http:///forum/post/3095191
Ya, that was the only part that didn't fit.... but I didn't know if that was New York fast or Southern fast.