Are these bad ??

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Cassy621#

Cassy621#

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Can anyone tell me what tests are on my Ulva lactuca in sump there's quite a few not noticed them before. Sponge maybe. Are they eating it.

20220903_114706.jpg 20220903_114628.jpg 20220903_115008.jpg 20220903_114709.jpg
 
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Cassy621# said:
Can anyone tell me what tests are on my Ulva lactuca in sump there's quite a few not noticed them before. Sponge maybe. Are they eating it.

20220903_114706.jpg 20220903_114628.jpg 20220903_115008.jpg 20220903_114709.jpg
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Do they move around at all?
 
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