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MoonSkin
10/05/2012, 08:19 PM
Hoping I could get an ID on some critters. Sadly, I can't get any pics since they're so darn tiny.

1. I noticed today several dozens of tiny little bug things swimming in my water. they had their heads down and tails up. They looked just like mysis shrimp except half the size. What are these? If they are baby mysis shrimp, is it possible they hitchhiked on the sargassum and small rock pieces I got from the beach? Also, could they maintain a breeding population in my fuge?

2. Another creature that has showed up is these tiny clear flat worms. They're maybe the size of a pencil eraser and are round at the front and have two points at the end. What are these?

3. The last critter I noticed was virtually a jellyfish except incredibly tiny. They swam just like jellyfish, had no tentacles and some even sat on the class. Should I be worried about these?

hollister
10/05/2012, 08:31 PM
The flatworms maynot be good. This might help.

http://www.melevsreef.com/id/

Reef264
10/05/2012, 09:59 PM
1.Copepods or Amphipods

2. From your description, it sounds like Amphiscolops Sp.

3. No Idea

All of these descriptions would be greatly improved with a picture.

-Ray

SushiGirl
10/05/2012, 10:10 PM
1 Could be mysis.
2 Harmless flatworms.
3 Hydroid jellyfish.