Mysis Shrimp?

[adolph_09]

was just wondering exactly what these guys are because they just had lots and lots of baby that are all over my sump and display. i know the ones to the left are amphipods but what are the others swimming around, mysis shrimp?

[Regric25]

I looked up video of mysis shrimp and they look very similar. How did they get into your tank? Did you put them in? Very cool video!

[adolph_09]

Thanks!! and no im guessing they just hitch hicked in on live rock. i first noticed they after i fed my tank some of those live tigger pods they sell at LFS, but yesterday i got some phytoplanton from ace (thanks again ace) and fed some to my tank last night then today when i got home from work i noticed them and there babies swimming all over the place

[SoLiD]

For sure Mysis Shrimp. They are quite common and reproduce well in our tanks.

[justahobby]

x 2 on the mysis. Entertaining little guys the way they spin in circles over and over. I used to have a cove in my big tank similiar to yours that would be full of them. Looks like you have a pretty healthy tank.

[adolph_09]

Yeah they sometimes look like they have no idea where they are going ha. So since they are mysis shrimp that means they should get alot bigger right?

[justahobby]

That's adult size for them as far as I know. They might be mysids. I never bothered to learn the difference lol

[justahobby]

Ok, I looked it up :-p Mysis vs mysids according to someone on reefcentral:

Mysis Shrimp is a Mysid Shrimp, but Mysid Shrimp is quite a general term which incorporates many species of shrimp in both fresh and salt water. Most commonly when a marine aquarist refers to either growing Mysid Shrimp and usually when they find a Mysid Shrimp hitch hiker, they are often talking about Opossum Shrimp (Mysis relicta). But not always. More often than not, it's difficult to identify a shrimp beyond Mysid, so Mysid is what is used.