isopod?

[myfrostymember]

yesterday i noticed something swimmng in crazy circles- it then landed on a rock and moved very slow- its little less then 1/4 inch- looks almost like a isopod- most of the isopod pictures i have seen show almost clear bugs this on is very dark grey-it didnt have very big eyes for what i could tell- i couldnt catch it or get a picture and i havnt seen it since then-

how do isopods swim? he looked like a tornado then landed and then jumped to the next rock the same way a little bit later--

i know pictures are very helpfull but they arent always easy to get- the camara is now sitting right next to the tank but he hasnt showed up again yet
any ideas?

 

[saltman123]

I've seen 2 types of critters running around for the most part.

The first looks like like it has a tail that curls around and it moves around crazy. They have a ton of legs and look almost like a shrimp.

The next kind look like they have a tail and swim around all crazy. These guys like to stay low and swim all around real fast. Almost like a brine shrimp/sea monkey.

I am sure someone else can chime in.

 

[ACBlinky]

Saltman 123 -- sounds like what you're looking at are amphipods and mysid shrimp.

myfrostmember -- pretty hard to tell if it's an isopod without a picture, but if you're not seeing big eyes even if it is an isopod it's probably one of the many safe varieties.

 

[bertoni]

http://melevsreef.com/id/

That page might help.

 

[saltman123]

Yes, definitely Amphipods and Mysis. Thanks for pointing that out. I wasn't totally sure but I just checked out the Melevs link and that is definitely what they are. I have a ton of Amphipods but no Mysis. My friend tank has tons of Mysis and no Amphipods.

A good idea would be to suction a few out and trade, right?

 

[650-IS350]

I have tons of copepods and ampipods and have a pair of mysis roaming the tank at night..