4 interesting ID's for you guys

Here is the first one. I couldnt figure out what this green mini xmas tree looking thing is growing off of my rock. No one eats it and it hasnt changed in appearance for about a month. You can see it directly to the left of my green/pink coral



Next ID is this one. This looks like 6 really really thin needles sticking out as it were a feather ducter. I have never seen one this bare though. In the picture, it is right about the pink green coral. It is not sensative to its environment as a normal feather duster is. You can touch it with something hard like a piece of plastic and it doesnt move. At night, it goes back into its hole and instead of the needles coming out, i get the legs of over 6 bristle starfish sticking their legs out of the same holes haha.



The next one below is of a red looking plant that has been growing off of the same rock as my colt coral. No one eats this one either and it hasnt grown much since ive gotten it. Just wondering what it is.



This next one Im being hopeful about. I have not experienced any corals splitting yet and am hoping that my two headed toadstool leather will make another head haha. In the picture below, you will see that on the left head where it is close to touching the rock, there seems to be a new little ridge or crease in the branch and hoping that the coral might move to the new rock or something.



Lets see how good you guys are haha. Anyone know all 4 answers???

Thanks in advance...

 

The first two are hitchhikers, i'll leave someone else to name them. The third one, i'm gonna go with Coraline Aglae, and I don't think that your toadstool is growing another head, but it could be, i think it's just a malformity. But that's just my opinion! Hope you get some good adivce!

 

Yeah, i was just wondering what type of hitchhikers the first two were. Im not sure if the third is a type of coralline algae... I was actually thinking a kind of plant.

 

Hello, the first looks to be macro algae (like Bryopsis type) could be trouble. I don't know about 2 & 3 but the toadstool is budding, that is how they reproduce.

 

Sorry, do you possibly have a macro setting on your camera so we can see the structure more clearly?

I really can't tell in the picture but does is seem like very skinny thin tubes that have some iridescent qualities (can kind of seem to change color depending on the angle you are look at it)?

Rhodymenia sp.

Sarcophyton don't reproduce via splitting like this. Something cut this coral's crown a long ago and the wounds on both sides healed themselves. When Sarcophyton normally reproduce, a small hole will appear in the crown near the edge. Then it will get bigger and tissue will be dangling. Then a portion of the coral will drop to the sand. That's the baby.

 

In regards to curts response, thank you. I now know more about whats going on in the third and fourth photo. In the second one, the tubes/needles are a little clear. They are always very stiff and dont waive around.

I will take a more up close shot of the green xmas tree thing.

Thanks to both curt and unclejed

 

Here is the larger photo.

Note. This has been in the tank for over a month and hasnt grown one bit.

 

Cladophoropsis sp. (possibly C. membranacea)

 

So, anything to worry about??? You are good with these names...you a bio major?

 

It grows slow as you've noted and is fairly harmless.

I'm actually a CPA. To offset college costs I did run the Bio-Lab at UMSL University but most of my training comes from being old and doing this hobby for a long time.