Fishfinder
2500 Club Member
they just appeared in my sump. I did a water change 2 days ago and didn't see a single one. Now there are probably over 100 in my sump. I don't see any in my display. What are they?
What are these????
- Thread starter Fishfinder
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DancingShark
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Pineapple sponges
OP
OP
Fishfinder
2500 Club Member
Are they trouble?
DancingShark
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- Jun 27, 2017
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Filter feeder. I have heard that they can clog plumbing lines but mine never have.
