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

vetteguy53081

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If I haven't added anything to the tank for over 5 months Is that possible?
may have started as a hitchhiker baby and is out as an adult.
 

OrionN

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Don’t have a good pic but saw this guy on the glass today. Its body is somewhat feathery. It’s the size of a small amphipod

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It looks like one of the nudibranch that POSSIBLY be a Montipora eating one. May came in as eggs and now you are in trouble
 
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lubeck

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It looks like one of the nudibranch that POSSIBLY be a Montipora eating one. May came in as eggs and now you are in trouble
If it is a bad nudi how long will it take before I can actually see i have a problem? Do they eat all acros?
 

santeeeyyy

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Srry I couldnt get a clear photo of this guy, I saw him and sucked him up using coral feeders and I lost him when I was reviewing the photos, He is on my floor or in the sink but I thought he was a zoa eating pest, he might be a pod
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Matt Carden

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I got some rock from KP today. I dipped in 53 ppt fresh mixed water. Got a Pistol that went into DT! But one critter gave me pause
 

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vetteguy53081

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I got some rock from KP today. I dipped in 53 ppt fresh mixed water. Got a Pistol that went into DT! But one critter gave me pause
Looks like a peanut worm which if so would be reef safe and eats uneaten food and detritus
 

CallMeChris

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This tiny critter showed up on my glass directly after a water change. Must of disturbed it out of its normal spot. Any ideas? Nudi? Deco crab?

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vetteguy53081

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This tiny critter showed up on my glass directly after a water change. Must of disturbed it out of its normal spot. Any ideas? Nudi? Deco crab?

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Looks like a very young or beat up brittle star
 

JulesH

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Hi, I was wondering if anyone recognised what I have growing on some of the hard corals (plating/encrusting) in my tank. The nodule is black and hard. but does not seem detrimental to the corals at present?

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CallMeChris

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I think it.is some type of Dorid Nudibranch that eats sponges/tunicates. Closest I’ve seen is the Sea Lemon, but everything points to them being in the Pacific and these rocks were harvested in the Gulf of Mexico. Thoughts?

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