What are these things?

[adamc1303]

I noticed these things frowing all over my tank. They are fairly large, and are keeping my zoos from spreading. I am pretty sure that they are BAD! I just wanted to have some I.D. them and help me get rid of them, if indeed they are BAD.
Here's a pic

 

[reefstar22]

aptishia (SP) - Those things are nasty, you need to buy a needle and inject them with kalkwasher.
They sting your corals.

 

[triga22]

Very bad apista. Kill em

 

[adamc1303]

How did they get in my tank? What should I use to treat them?

 

[pondy]

I would guess that they came in on some live rock, they can start as just one little thing and soon turn into a bunch. Hurry mate and get rid of them. Good luck

 

[reefreak29]

its aptasia , theres lots of threads about them if u do a search

 

[reefstar22]

Originally Posted by Adamc1303
How did they get in my tank? What should I use to treat them?

Read my statement.

 

[zanoshanox]

inject them with kalkwasser, they'll never show up again

 

[adamc1303]

Won't Kalkwaser mess around with my calcium levels? I know I am injecting it into the aptishia, but what about the little that drips in the rest of the water?