What’s this white thing on return pump?

ajf2077 · 2026-10-13T11:02:54-0400

Good or bad?

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tbrown · 2026-10-13T11:10:14-0400

If it's the thing you zoomed in on, it looks like a snail. What kind is very hard to tell from the picture though. Does it move or is it stationary? Hard or soft? Are you able to give a decent description to help us ID it for you?

exnisstech · 2026-10-13T11:16:24-0400

Probably going to need a shot more in focus. Could be a chunk of asterina star. I get them in all kinds of shapes.

Gumbies R Us · 2026-10-13T11:25:09-0400

Hard to tell what it is from the photo provided

ajf2077 · 2026-10-13T11:26:50-0400

tbrown said:
If it's the thing you zoomed in on, it looks like a snail. What kind is very hard to tell from the picture though. Does it move or is it stationary? Hard or soft? Are you able to give a decent description to help us ID it for you?

Sorry, spent a few minutes, was hard to get in focus, I'll watch it and get a better picture when it comes around the glass. It's like a flat white blob with no shell. about the size of my pinky finger nail. I think has 2 atenna's on it's head. It moves around, been slugging around the glass and now it's posted up on return pump. It's soft. Hope that helps a little more.

tbrown · 2026-10-13T11:28:40-0400

Flat snail with no shell, two antennae?

Sounds like a possible Stomatella snail or a nudibranch of some variety.

ajf2077 · 2026-10-13T11:29:57-0400

Nice! I was worried it was a flatworm of some type, but I just googled stomatella, and it could def be that. I'll share a better picture when he gets closer to front of tank. Thanks again, new to this!