please help me identify some things on our live rock! and let me know if they are good or bad?

1. green looking plants growing from live rock?
2. small dark green ball. only one in tank so far. sits on live rock. not sure if it is attached or not.
3. red weed looking thing. hides when i touch it.
4. white stuff on several live rocks. its on top as well as bottom of rocks.
5. white weed looking thing. similar to 3 and hides when i touch it also.

thanks (:

Ok, the first two are bubble algae. Not bad but a nuisance. The type of algae in #1 is brighter than i have seen tho. Pull some out and squeeze it. If it pops with water, it's bubble algae. All you can really do is pull it by hand. You should probably get rid of it before it spreads. Toothbrushes work well too. #3 is an aiptasia. It is bad and you should kill it with kalk or some kind of remover like aiptasiax or joes juice. #4 looks like bleached coraline algae. It was probably under the sand for a while. #5 looks like a feather duster. They are good. They are a filter feeding invert.


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I pulled number 1 out & it didn't pop. But my hermits or fish are eating it so I guess prob solved there.

I killed the apatasia with a needle syring & .5 ml of lemon juice! (:

and on #4, i think that is dead stuff from where i need to cycle the rock. does this sound right? i just don't know how to remove it!

I don't like freshwater, not as pretty. This stuff is all easy to get rid of, you just have to figure out what it is first.

amy, how long has your tank been running? Got any full tank shots?

I'm having a little trouble seeing and getting a clear view of the algae in #1. It looks like a macro algae. Possibly a fluorescent colored variance of Caulerpa paspaloids var. compressa. You said your fish and hermits are eating it so it is definitely a food source, pretty color and as long as it is not taking over I wouldn't worry about it.
#2, as mentioned before, is bubble algae. Be careful removing it. If it bursts inside the tank it can spread seeds and cause an infestation.
#3 is aptasia. Pesky nuisance. Looks like you took care of it already. I'd suggest 2 other ways to remove aptasia. Hot kalk water or, better yet, true peppermint shrimp Lysmata wurdemanni. Make sure it is L. wurdemanni. Also sometimes red legged hermits will eat aptasia.
#4 is bleached or dead calcareous algae. Don't worry. Give it light and it may eventually turn color again.
#5 is a tube worm. You can expect more to sprout up all over. Very cool as it is showing the rock coming to life.