All my shrimp are gone?

[chaostactics]

Except for my pistol shrimp.



I have an IM 30 that's topped off with RO, gets a water change every three weeks, filtration via tunze 9004, intank media rack converted to refugium.



I had a cleaner, 2 sexy shrimp, 2 peppermint, and a glass anem shrimp. Everyone was fine until the hurricane, I lost 1 sexy shrimp after 7 hour outtage. Everything else was fine. Over the last 2 months the 2nd sexy, 2 peppermint, cleaner, and glass anem shrimp are all gone.



Only recent addition is a small royal gramma.

Residents: high bar goby/.5 peppermint pistol, trip of 3 small ocillaris, green emerald crab, non-anem hosting porcelain crab, 2-3" bta. Misc hermits, snails, fighting conch. All had been in the tank with all the shrimp (save the gramma) for at least 3 months.



Don't get what gives?

I've never seen a bristle work in the tank, no hydroids, aphasia, etc.



Feeding 3 x a week. Clean the skimmer the same.

 

[Kremis]

only variable here....

 

[DeniseAndy]

Aside from rapid changes in pH or temp which most shrimp to not handle well, not sure. Crazy fish in the video. Shrimp can be hit and miss. I have had some stay alive for years (pistol going on over 8 years) and some last a month. Sexy shrimp are very short lived, so no surprise there. Peppermint I never keep more than about 6 months (although I think my fish eat them). Cleaners usually last a longer time for me, but if I change things in tank to quick, they are first to disappear.

 

[chaostactics]

I seriously hope that's not the case. I'll add another peppermint or two and keep a close watch. Inverts>gramma. Gramma got to go if thats the case. Thank you.
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Anyone helse have thoughts?

 

[chaostactics]

Thank you both for feedback. I was just confused why the other inverts were making it (hermits, pistol, crabs, etc)

Seriously hope its not the Gramma its pretty small. If its the culprit though its gotta go. I like my inverts more.

@DeniseAndy I'm sure I could probably google it, but if you know off the top of your head. How long do sexy shrimp usually live?

 

[DeniseAndy]

2 years is my understanding. So, by the time we get them, not long. I have had some from 8m to over a year. Currently have two and they are small, so we will see how long these go.

 

[DeniseAndy]

Aside from rapid changes in pH or temp which most shrimp to not handle well, not sure. Crazy fish in the video. Shrimp can be hit and miss. I have had some stay alive for years (pistol going on over 8 years) and some last a month. Sexy shrimp are very short lived, so no surprise there. Peppermint I never keep more than about 6 months (although I think my fish eat them). Cleaners usually last a longer time for me, but if I change things in tank to quick, they are first to disappear.

They do not tolerate swings in salinity well. I meant that not pH (although I have no experience to pH issues) sorry. Miswrote.

 

[DeniseAndy]

2 years is my understanding. So, by the time we get them, not long. I have had some from 8m to over a year. Currently have two and they are small, so we will see how long these go.

Some claim up to 3.5 or even 5, but never heard or experienced that long.

 

[LovesDogs_CatsRokay]

Just in the last few weeks I've had 2 peppermints disappear within a day or two of putting them in the tank. Something's gotta be eating them, just not sure what.

 

[DeniseAndy]

wrasse? My Christmas wrasse was the culprit in my tank.

 

[LovesDogs_CatsRokay]

Oh scratch that! Just saw them both! They’ve just been hiding! Lol

 

[Nhjmc]

Three of my sexies have gone missing within a few months I only have one left the largest of the four. I have a bad feeling the stupid purple dottyback killed them. I've got to get that bully out of my tank asap he torments my purple and red firefishes constantly and I am pretty sure it killed and ate my anemone crab all I found left of him/her was two claws.