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Old 07/11/2010, 01:26 PM   #1
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Location: Owasso, OK
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Snails without shells?

I found these in my sump this morning. I probably have 100+ of them. They're all over pumps, in my skimmer, blocking tubes, etc. I was wondering why my skimmer stopped working, and these guys were the answer.

My question is - what are they? At first glance, I thought there were snails, but they don't have a shell. They're also very stubborn and somewhat difficult to remove from the surface they've stuck too. They're squishy like a slug.

Second question - How do I get rid of them? I haven't seen any in my display tank, but like I mentioned, they're all over the sump, and I don't want them to block my skimmer intake hose again.


Thanks for your help!

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Old 07/11/2010, 01:35 PM   #2
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Do they move?

They look like some sort of sponge, but that may be the picture that makes them look like that.

If they move, and they are shell-less snails...stomatella snails would be my guess.


Current Tank Info: DSA 155 Pro | ATI Sunpower | ATB 840 v2
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Old 07/11/2010, 01:38 PM   #3
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I second the sponge. Filter feeder.

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Old 07/11/2010, 01:54 PM   #4
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looks like a pineapple sponge

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Old 07/11/2010, 01:59 PM   #5
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They don't seem to be moving, but if they don't how would they have gotten into my skimmer? Just in the water flow?

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Old 07/11/2010, 02:37 PM   #6
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looks like a sponge.....i have hundreds of them in my sump too!!

btw a snail without a shell is a slug :O)

Nothing scarier than a clown!!

1 ClownFish
1 SixLine Wrasse
1 Foxface Rabbitfish

Long Polyp Leather
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Current Tank Info: 360 litre (95 US Gallons), Tunze DOC Skimmer 9010, Lights: Metal Halide 250 Watt and 2x24 Watt Moon Lights, Tunze MultiController 7095
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Old 07/11/2010, 03:00 PM   #7
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Search for Scypha sponge or pineapple sponge. They're harmless filter feeders.

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Old 07/11/2010, 03:46 PM   #8
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picture isn't working for me, but it sounds like exactly what I have all over in my HOB skimmer. I just keep them cleaned off the pump. Don't know what else to do about them LOL.

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Old 07/11/2010, 07:52 PM   #9
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Is this a better pic of what you have?


They are all over my sump to and was told that they were harmless filter feeder sponges.

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Old 07/11/2010, 07:57 PM   #10
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Yep,pineapple sponge.

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