What is that!! A R2R guide to common new tank hitchhikers.

[tacopaco]

New hitch hiker today - Know what it is?

 

[Copingwithpods]

New hitch hiker today - Know what it is?

Asterina starfish

 

[ingchr1]

Do you guys know what is this? I havent been able to find any information on that stick coming out of my GSP. I tried breaking it off but it grows back.

Thanks in advance

Did you ever find out?

I think I have the same and it's spreading throughout the tank. Trying to identify myself.

 

[KJ]

Did you ever find out?

I think I have the same and it's spreading throughout the tank. Trying to identify myself.

Majano.

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[ingchr1]

Majano.

The thin stalks standing on the end of the rock?

The coral is a galaxea.

 

[Copingwithpods]

The thin stalks standing on the end of the rock?

The coral is a galaxea.

May or may not be related but soon after I noticed these in my tank I had a bryopsis outbreak, the bryopsis was dealt with but I still see a few stalks of this algae in a zoa colony. They grow ridiculously slow and I haven't seen them spread.

 

[ingchr1]

May or may not be related but soon after I noticed these in my tank I had a bryopsis outbreak, the bryopsis was dealt with but I still see a few stalks of this algae in a zoa colony. They grow ridiculously slow and I haven't seen them spread.

I haven't noticed any bryopsis in the tank, and in my case these are spreading.

I initially thought it may be bryopsis, but ruled it out since they don't have the fern like structure.

Hopefully someone identifies for us looking.

 

[Jasonbuckley011]

Can you identify this hitchhiker for me? I recently got it off a zoa rock before putting it in my tank.

 

[H3rm1tCr@b]

Can you identify this hitchhiker for me? I recently got it off a zoa rock before putting it in my tank.

Amphipod. Harmless clean up crew

 

[hikermike]

Not harmless...beneficial. Eats detritus and feeds finicky fish

 

[Florida Dan]

Brand new to saltwater tanks. My apologies for probably not using the right terms.

Hello, I purchased a small cluster of Zoa yesterday. There are a couple of "extra's".

First is at around the bottom of the frag disk in the photo. It's a tube around a half inch long, and the plant that emerges looks like a round fan. It is white and tan, and pokes back into it's tube when it senses motion near it.

Second is in the middle of the zoas, and is more starfish shaped.

Thanks,
Dan

 

[KJ]

Brand new to saltwater tanks. My apologies for probably not using the right terms.

Hello, I purchased a small cluster of Zoa yesterday. There are a couple of "extra's".

First is at around the bottom of the frag disk in the photo. It's a tube around a half inch long, and the plant that emerges looks like a round fan. It is white and tan, and pokes back into it's tube when it senses motion near it.

Second is in the middle of the zoas, and is more starfish shaped.

Thanks,
Dan

Feather duster. Harmless filter feeder.

 

[ingchr1]

Bumping this back up for and ID on the thin stalks sticking up on the end of the rock.

Did you ever find out?

I think I have the same and it's spreading throughout the tank. Trying to identify myself.

 

[KJ]

Bumping this back up for and ID on the thin stalks sticking up on the end of the rock.

Look like sponge.

 

[TobyJack]

Does anyone know what the white/purple spikey things are? They showed up overnight. The frag is over a year old now and have never had them before. No new additions to the tank in the last 6 months. Please excuse the green HA. I’m fighting a losing battle.

 

[SaltyxxBawlz]

I went to the dungeon this morning during the ramp up period and noticed this on the glass. I believe it’s snail eggs? Just wondering if someone can id this for me and offer advice if needed. Thanks in advance!

 

[Chiefmaster30]

Can someone help me Id this critter? Good? Bad? I’m assuming bad bc he was on bottom of one of my frag plugs.

 

[Udest]

Gonna need a better photo it's a tad blurry is it a mollusk of some sort?

 

[Klaw29]

Trying to figure out what this is. It's all throughout my sump chamber but not in my display.

 

[Niko219]

Hi! First time posting on this thread, but I have read a lot of it!
Can you guys ID this.... thing? Tell me if it’s good or not. THANKS!! They are soft at the entrances and hard in their weird tunnel things. Taken over the whole live rock lol