Tiger pistol shrimp: a controversy

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Sw33tdave

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One of the main reasons I got into the saltwater reefing game was because of an infatuation with the symbiotic relationships I could observe right in my home. I was most intrigued by the pistol shrimp goby combo. I was enchanted by the seemingly impossible pairing of these twodifferent creatures.

Upon setting up my 15-gallon Hello Reef nano one of the first additions I made was a skunk cleaner shrimp. A utilitarian addition I grew to really enjoy. He was a character to watch, filled with personality and dare I suggest... charm.

Shortly after the addition of my CUC I went back to the LFS and grabbed my watchman goby and tiger pistol shrimp. I was assured by both the store owner and the internet that these two fish were quite safe and didn't require large tanks due to an affinity for the sand life and personally curated caves. One dead hermit, a dead fire fish, and a dead, beloved, skunk shrimp later, the tiger shrimp is heading back to the LFS. To rub literal salt on the wound, my goby never liked my tiger and did not pair.

Of course, after my fish started to die I began obsessively checking my parameters. There must be some measurable problem that was the answer for these mysterious deaths, but everything kept coming up clean. I then began researching the possibility my tiger could be harming my livestock. What I learned was that this is not an isolated event and was actually likely in a nano tank. Many people have had this experience, and tiger shrimp are in fact quite territorial and a nano tank can really bring out the predatory feline in them. I also learned that this school of thinking is quite controversial with many reefers having wonderful experiences with very docile tigers and being quite vocal about it, all the while other folks are claiming tigers are the anti-fish sent from hell to lay fire and brimstone to their tanks. Unfortunately, my experience was more akin to the latter.

I write this because the comments on the R2R forum appear to be quite binary. Reefers raising the pistol shrimp flag high, claiming no pistol shrimp has ever killed anything in a tank ever, and then the opposition saying they are completely non-reef safe and best left inside a Jurrasic World style paddock. I think there are reef safe tigers out there, and I think there are others that have much less kind dispositions and no patience for pestering skunk shrimp. As nano reefers I think you should be aware you really don't know what you are getting until it is in the tank with your stock and interacting. Just be aware a tiger shrimp in a nano tank can be a roll of the dice.

Ultimately I do think I will try again with a candy cane pistol. I would love some comments on this decision or should I just hang up the towel and accept that my tank is too small for even the smallest of pistols and wait until I upgrade to my 40g?
 
I personally have a Candy Cane/Randall's pistol shrimp and it did fine in a 15 gallon. I can't comment on gobys since my Yasha goby disappeared a couple days after I added them together and I suspect the more likely culprit was disease or shipping stress. I never really tried to pair another goby since I had other fish I was more interested in.

He's been tankmates with a skunk cleaner, possum wrasse, and a number of other small fish and he hasn't seemed to give me any trouble aside from throwing sand on corals near his burrows.

I did eventually upgrade to a Waterbox 25 gal AIO (Because I wanted a larger tank and not because I had issues with my shrimp) and my firefish I got recently seems to have moved into one of the burrows, though I'm not sure how actively the shrimp is using that entrance at the moment. He even seems to sort of share his burrows with my tiger cucumbers.

EDIT: formatting.
 
Its definitely possible but I'm very skeptical. I'm sorry, but its easy to have losses in this hobby, very often the new hobbyist will instead point to the hermit crab or the pistol shrimp going on a killing spree as the cause. I don't believe in rogue inverts that go on a mission to hunt down all the fish and inverts in the tank.
 
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I am inclined to agree with the theory that the size of the system plays a significant role. In a nano or pico tank inhabitants have no where to flee to. The constant threat of territorial encroachment stress tank inhabitants. Fight or flight.
Having once had a YWG and a Tiger Pistol in a 29 gallon tank for years without issue I was initially doubtful of the claims of aggressive Pistol Shimps.
It's hard to ignore so many claims to the contrary. In the confines of small tanks I can see where Pistol Shrimps would kill tank mates.
 
Its definitely possible but I'm very skeptical. I'm sorry, but its easy to have losses in this hobby, very often the new hobbyist will instead point to the hermit crab or the pistol shrimp going on a killing spree as the cause. I don't believe in rogue inverts that go on a mission to hunt down all the fish and inverts in the tank.

This is absolutely the struggle! Saltwater fish can die a thousand deaths, and they of course never do it when you are watching your tank over a cup of coffee in the morning. They do it in the middle of the night so you can find their carcass on your powerheads in the morning. My skunk was in the middle of a molt, a very vulnerable time for them. The molt could have killed him. I do suspect that after he molted he crawled into a tiger hole and was killed by him as I had seen my tiger snapping at him frequently when he exhibited the behavior previously. I then had to dig my Skunk out of the hole as my tiger was munching on him when I found him. This is why I feel confident the tiger was his demise, but of course, he could have died mid-molt due to some inadequate tank parameter (my testing equipment is very rudimentary) and then my tiger just took advantage of a freebie snack and dragged him into his hole postmortem.

Frankly, I need to pull the tiger out to remove one control factor and start a new series of observations with fewer variables.
 
I have two pistol shrimp/goby pairs in my 46g AIO: Randalls goby with Randalls pistol shrimp and a grey Watchman goby (Biota) with Tiger pistol shrimp. They live under rocks on separate sides of the tank. In the middle, I got a yellow headed jawfish (Biota) that has recently built a home underneath the main rock structure. These fish don’t really leave their burrow areas, and I do occasionally hear the pistol shrimps snapping.

I haven’t seen any invert deaths. I have 6 hermit crabs (blue legged, scarlet, Halloween), a fighting conch, a few Pom Pom crabs, 2 tuxedo urchins, cleaner shrimp, fire shrimp, and astrea, nassarius and nerite snails.

The tiger pistol and watchman paired as soon as they were introduced. The Randall’s took a few months. The shrimp buried itself in the sand and was hard for the goby to find it. I really like the Randall pair since they move much less sand. Out of the three, the jawfish is the most destructive in terms of spitting sand on corals, but his personality makes up for it. These guys are all pretty entertaining.

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I have two pistol shrimp/goby pairs in my 46g AIO: Randalls goby with Randalls pistol shrimp and a grey Watchman goby (Biota) with Tiger pistol shrimp. They live under rocks on separate sides of the tank. In the middle, I got a yellow headed jawfish (Biota) that has recently built a home underneath the main rock structure. These fish don’t really leave their burrow areas, and I do occasionally hear the pistol shrimps snapping.

I haven’t seen any invert deaths. I have 6 hermit crabs (blue legged, scarlet, Halloween), a fighting conch, a few Pom Pom crabs, 2 tuxedo urchins, cleaner shrimp, fire shrimp, and astrea, nassarius and nerite snails.

The tiger pistol and watchman paired as soon as they were introduced. The Randall’s took a few months. The shrimp buried itself in the sand and was hard for the goby to find it. I really like the Randall pair since they move much less sand. Out of the three, the jawfish is the most destructive in terms of spitting sand on corals, but his personality makes up for it. These guys are all pretty entertaining.

1738186895135.jpeg
Your tank is too cool! Thanks so much for the insight. I saw the Randalls will pair with YWG. IS this true? I am just looking to get rid of the tiger and try again. Tiger needs more space I suspect. My YWG is the original homie, and has been a model citizen.
 
Your tank is too cool! Thanks so much for the insight. I saw the Randalls will pair with YWG. IS this true? I am just looking to get rid of the tiger and try again. Tiger needs more space I suspect. My YWG is the original homie, and has been a model citizen.

Thanks! Yeah, I read the Randall’s and YWG will pair. The Randall’s shrimp is much smaller than the Tiger pistol shrimp. I would try to get a small YMG (like 2” at most) to start to make the pairing easier. Also it helps if the tank isn’t too big. Sometimes they have a hard time finding each other if the tank is too large. Or you can try putting them together in an acclimation box to start.
 
I took some videos this morning of the shrimp/goby pairs:




Super cool! Your soft corals are beautiful right above the shrimp layer as well. Did you buy your combo at LFS or online?
 
Super cool! Your soft corals are beautiful right above the shrimp layer as well. Did you buy your combo at LFS or online?

Oh the coral above the Randall’s goby is a LPS: it’s actually a chimera torch coral which currently has 3 heads. I believe the rightmost head is a dragon tamer but don’t know the names for the other two. I purchased it at NJ Frag Fest a couple weeks ago from Jays Exotic Aquatics for $240.

Above the watchman goby is a branching montipora digi that I bought online from Biota about 2 months ago.
 

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