Several IDs

Hey I made some pictures and I think I IDed some of them already but you can never be sure, I learned.



The light brown thing just a bit right of the center of the picture. It has a base tube/column and several filter hairs. It doesn't really look like an anemone but may still be one. The tentacles are like 1/4th the size of the column which makes me think it may be something else. Maybe a feather duster but doesn't close up.



This is a feather duster and on it's left what looks like a bunch of juvenile versions of what was on the previous picture.



This must be an anemone. It's very juvenile. Is there any way to tell what it will become? Not sure if it's alive actually. It doesn't seem to have grown but it also hasn't decayed. Searching with google.image it seems both button anemones and some bad anemones look like this in early stages.



You can see two of them again in the center. They are really perfectly symmetric and there are several of them. So I assume it's some kind of creature and not algae.

 

try a majano anemone or aipstasia could u get better pics?

 

The first one is colonial hydroids, can be a problem. I think scraping them off is the best way to remove them tho aiptasia-x might work. The third pic looks like aiptasia, the last if it is the white things in the middle those ore mini dusters, good to have.

 

Yeah the brown thing is definitely a hydroid, it seems. I have seen different sources say different things. Some say they string. Some say they don't. Some say you can remove them manually. some say you can try but it they will grow back or you may risk pollinating your whole tank with tiny pieces of hydroid.. Some say they aren't a pest and will just disappear unless the water is too nutrient.

Also the small ones are on a rock all the way on the bottom of the tank on the bottom side of the rock.

Is one supposed to starve off a lot of stuff in the tank? I've seen some people say that many tunicates will disappear because of the low nutrients required for coral.


Mini ore dusters? You mean duster worms? I saw somewhere call them octocoral but I had my doubts about that.