Zoas disappearing

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Hi

I have a small rock with say 100 Zoa heads on it.  Lately they seem to be disappearing.  I had this once before with my old tank and they came back when i switched to this tank. 

I have just added a skimmer to the tank which is the only change that i can think of.  Do they prefer to live in their own muck or something?  Do they recover?

fr499y

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Reply #1

can you take the rock out with the zoas on and dip it? Usually if they are disapearing, its down to something munching! Zoa eating nudi's, zoa spiders, some starfish etc.

rusty_uk

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Reply #2

It's been ages since anything new was introduced to the tank.  And new things always get dipped before they go in.

I have noticed that the red spaghetti worm that lives on this rock is getting bigger now.  Do you think that this might be irritating the Zoas to destruction?

fr499y

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Reply #3

might cause them to close but wouldn't normally kill them.

Gav

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Reply #4

I had a sundial snail nibbling mine for a bit , and only appeared during the night

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