what are these corals/things?

[hipppo]

Hi i just started a new tank, it is cycled with fish. I bought some new rocks and there were these corals and other living thing on it.
I have no idea what they are and is not sure they are good or bad.
One of it looks like aiptasia which i know is bad, but I am not exactly sure if it is.
If someone can just tell me the names or what it is and if its bad or not.. I can do my own research once I know their names.

theres a bunch of these ones


these 2 are actualy purple



another differet one i dont know



another


picture is bad quality but this one is red with little openings in each of the red pieces


this is the one I think is aiptasia, but i have a peppermint shrimp and it hasnt tried to eat this thing



there are a few of these things on the rocks. They look and feel like sand building up shaped as strings and ropes on the rocks stretching 1-2 inches and in one big blob like this one shown in the picture. When i touch it, it falls off like sand, except the ones actually on the surface of the rock which is kind of tuff





these all came from a tank with metal hallide lighting for idk how long (i assume 5-10 hours a day) and few fish/crabs/snails. They are alive. It was just a 75 tank stacked with rocks.. about 200+ lbs. Owners fed grinded salmon and fish.

The pieces shown are now in my 100 gallon tank with proper filtration and no overfeeding.


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[krustyart]

1 zoanthid
2 & 3 Colt coral or tree coral
4 button polyps or palyotha
5 clove polyps
6 Hard to see the detail in that pic. Either colonial tunicates or sponge. A good close-up would help.
7 It does look like aiptasia.
8 Those look like casings of a type of worm. Usually harmless. Again, sharper photo would help.

 

[Kevin8888]

Doesn't really look like an aiptasia to me... but the picture is so blury it's really really hard to tell. But judging from the tenticals? feelers? w/e they are reffered to as... they appear much to short/blunt to me, also technically Aiptasia isn't a bad thing litterally... they just spread like weeds if there is enough to eat.

 

[hipppo]

thanks guys, i will first do research on the list of names you gave me and then try to take better pixs.


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[hipppo]

so is this a kenya tree?




aptasia? And yes i understand they help clean or eat extra food, but i meant bad as for other corals, I am not raising a reef so it wont be bad for me








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[Kevin8888]

Yah, thats probably an Aiptasia judging from the better pic.

 

[KellyFrancis]

I'm jealous! You got some nice hitchhikers there! Dayum!

 

[Otherone]

From the 1st set of pics - Pic 2 - Kenya tree, pic 3 - colt coral, pic 6 red marine algae

 

[krustyart]

Yeah, pic 6 was hard to see...