What on earth is this?

  • Thread starter Thread starter mjszos
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I agree that the white sack is a Pineapple Sponge. It is a little more squat than most and agreed, smoother but it does seem to have very small hairs. The hole area looks very sponge like. Compare these two photos. The first is a blow up of your guest and the second one is a regular Pineapple Sponge.


1644975699377.png

1644975747481.png


As to the second, mystery guest, it seems to react very quickly to a perceived threat. It may be Aiptasia, but it is impossible to tell what it is as you can only see the 'tentacles'.

1644980085326.png
 
Last edited:
I agree that the white sack is a Pineapple Sponge. It is a little more squat than most and agreed, smoother but it does seem to have very small hairs. The hole area looks very sponge like. Compare these two photos. The first is a blow up of your guest and the second one is a regular Pineapple Sponge.


1644975699377.png

1644975747481.png


As to the second, mystery guest, it seems to react very quickly to a perceived threat. It may be Aiptasia, but it is impossible to tell what it is as you can only see the 'tentacles'.

1644980085326.png


I think you all were spot on with the pineapple sponge. Regarding the other mystery visitor, I guess I will find out if it is aiptasia or something else in the coming weeks. I will have to tear the tank down and move it to a new house, will take an opportunity to examine it at that point. If it is aiptasia, I'll feel real silly. Coloration just seems different than what I've seen.
 

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