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Sealybomb

@Tired thanks for the advice 👍 he seems to have moved somewhere now so now idea where it went!

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Jerad81

After looking through the pictures I believe these are a type of sponge. Although there are some similarities to the tunicate and spirorbi pics I'm thinking those are kinda long shots. Either way I just wanted to verify these are harmless. I've found 3 of them and so far they don't appear to be bothering anything so I've just left them alone. I am a little curious though what they officially are if anyone recognizes them.

 

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Yes, I know there are flat worms in my pics. I have an infestation popping up that I'm trying to figure out. I'm just asking about the white blobs. Thanks. 

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Tired

Yep, looks like sponges. Probably harmless. Some species can grow fast, though, is the only potential risk. Fast-growing sponges should be pruned regularly, since any rock they touch is pretty much permanently going to have sponge on it.  

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Jerad81
2 minutes ago, Tired said:

Yep, looks like sponges. Probably harmless. Some species can grow fast, though, is the only potential risk. Fast-growing sponges should be pruned regularly, since any rock they touch is pretty much permanently going to have sponge on it.  

Oh wow, I didn't realize that. I found these a few weeks ago and they don't appear to be getting much bigger but I will definitely keep a closer eye on them now. Thanks for the heads up!

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Tired

If they aren't growing at a notable rate, they're probably fine. Most sponges you're likely to encounter either do poorly in aquaria, or sort of putter along. The invasive ones are a minority, and are easy to handle- just pull pieces off sometimes. They're tricky because it's hard to remove every cell from a rock and be sure they won't come back, but they aren't dangerous or anything to be worried about. Just, if you happen to notice that there's suddenly a lot more than before, consider removing some. 

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Jerad81
6 hours ago, Tired said:

If they aren't growing at a notable rate, they're probably fine. Most sponges you're likely to encounter either do poorly in aquaria, or sort of putter along. The invasive ones are a minority, and are easy to handle- just pull pieces off sometimes. They're tricky because it's hard to remove every cell from a rock and be sure they won't come back, but they aren't dangerous or anything to be worried about. Just, if you happen to notice that there's suddenly a lot more than before, consider removing some. 

I actually started looking closer at my rocks yesterday and found about 4 or 5 more. It's hard to tell because they are all in some pretty dark/deep crevices that make it impossible to see them unless you're looking really hard. 

 

I've actually been dealing with some REALLY high phosphate and nitrate levels in my tank (probably a big contributor to my flatworm problem). I  kinda wonder if that's been a reason why they're popping up in my tank right now. As long as they're not bothering my coral I'm content to leave them be. Thanks for all the info, I really appreciate it!

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DigitalDem

Looked through this thread and I'm still not 100% sure on my critters. There are a handful of them floating around my water column of various sizes.

I was able to pull one out to snap a photo. This one was the biggest, sizing in at about 1/8th of an inch. 

Is it a pod of some sort?

 

Any thoughts/help would be welcome.

 

Thanks!

IMG_2470.jpg

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Tired

Any pics of it in the water? How does it move? 

 

Doesn't look like a crustacean of any sort I've seen, no legs. 

 

By any chance have you scraped the walls of the tank recently? Almost looks like a dislodged pineapple sponge. 

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DigitalDem

Hi, sorry for the delayed reply.

No pics of them in the water yet, but they kinda of get pushed around aimlessly by the powerhead flow.

They didn't come from scraping, but I have seen a couple of them hanging on my leather cabbage coral

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DevilDuck

Looks like a dislodged pineapple sponge to me too. They typically grow in dark places. Check your filter or pump area, probably a bunch growing there too.

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pixiebell1988@gmail.com

Hi I have fresh water fish I can't find what this is ..... orange threats moving in the corner coming out my sand ... like hair orange hair in the water 

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