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lifen

Tuxedo urchin has black spot

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lifen

The black spot is situated on one of his velvet blue bands. Its a pretty big spot, goes the whole width of the band and about 0.5 cm in length.

 

He has enough algae to graze from.

Water changes every week, although it has to be said that the last 3 WC's happened with old water, I still had stored.

 

Could this be the problem?

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albertthiel

The black spot is situated on one of his velvet blue bands. Its a pretty big spot, goes the whole width of the band and about 0.5 cm in length.

 

He has enough algae to graze from.

Water changes every week, although it has to be said that the last 3 WC's happened with old water, I still had stored.

 

Could this be the problem?

 

Can you post a picture as without one it is really hard to see whether it is a reason for concern or not .. Tks

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MOJOEJOEJOE

usually if water quality is bad they will loose there spines.

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Arkayology

The Black Spot? It's a pirate's death mark...

 

but seriously.. I think we need some pics. What other inhabitants do you have in the tank? Params?

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lifen

Other inhabitants are:

 

2 hermit crabs

1 Coral Banded Shrimp

3 sand sifting snails

1 or 2 turbo snails

1 bumblebee snail

 

I'll get the params tomorrow.

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Bilirubin

My tuxedo urchin has one of these too! Did you ever figure out what it was? How did the urchin do?

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