Nassarius, whelk, or other?

[BZOFIQ]

My understanding is that they are safe for everything but some corals, and other snails. They will also consume dead fish, but they are not a danger to fish.

Im leaving them in my tank for now, but will remove them before adding anything else to my tank

More than 15 moved to my observation tank. I didnt find anything this Am in my DT.

I really hope I can get to the bottom of why some of my corals that were doing well are no longer thriving.

I guess I'll know if any of the new fish under observation disappear - they have been there for more than a month and are doing well.

 

[BZOFIQ]

The mottling on the siphon looks like predatory whelk to me, though im still not an expert

That's what I figured....and they have a "door trap" which is something I read about.

Perhaps we get more folks into this thread who can confirm 100% but in the link I posted earlier it appears these are the same.

 

[GiraffeShepherd]

My understanding is that they are safe for everything but some corals, and other snails. They will also consume dead fish, but they are not a danger to fish.

Im leaving them in my tank for now, but will remove them before adding anything else to my tank

More than 15 moved to my observation tank. I didnt find anything this Am in my DT.

I really hope I can get to the bottom of why some of my corals that were doing well are no longer thriving.

I guess I'll know if any of the new fish under observation disappear - they have been there for more than a month and are doing well.

All my other softies are doing fine, my zoas are the only thing dying back (at least those that remain, most got smothered by mushrooms)

A colony on an island rock used to have 200+ polyps, now its down to ~50 and theyre kind of spread out, and they dont open fully. Theyve been like that for months

 

[X-37B]

Get one of these and place a piece of shrimp in it. You will be surprised at what you catch every night. If you removed 10 you have more. Mantis trap.

 

[BZOFIQ]

...

A colony on an island rock used to have 200+ polyps, now its down to ~50 and theyre kind of spread out, and they dont open fully. Theyve been like that for months

That describes most of my zoa situation.

 

[BZOFIQ]

Get one of these and place a piece of shrimp in it. You will be surprised at what you catch every night. If you removed 10 you have more. Mantis trap.

Can you post a link to this please?

 

[X-37B]

Can you post a link to this please?

https://premiumaquatics.com/product...jXCUHkduBoCFacQAvD_BwE&variant=47329448853746

 

[X-37B]

Here is one in stock on ebay
https://ebay.us/m/JxY3CX