Aquarium Serial killers!

[WolvertonReef]

Blue damsels.....

 

[RuneScapeReefer]

I had a Tailspot Blenny that was relentlessly attacking my baby Orange Storm clown pair and Helfrichi firefish (he also was munching on my Cyphastrea). This went on for almost 3 months only because it was literally impossible to catch him without destroying the tank in the process. By the time I successfully caught him, he had already killed the firefish, the clowns were pretty banged up (but they were alive), and some of my favorite corals had sustained enough damage from all of the riff-raff that they ended up dying. Before the clowns & firefish I had a Yasha goby that went carpet surfing (managed to jump even through the lid), and I now believe that the blenny played a part in that. Anyways, he went into solitary confinement in my frag tank because I was so upset and I wasn't sure what to do with him. I wasn't about to give a convicted murderer to my LFS. While I was deciding he ended up going carpet surfing. (But landed in a nearby measuring cup instead. I didn't see him until he was pretty much a strip of jerky)

 

[JoJosReef]

Need I say more…

Only other fish to go on an unprovoked killing spree was my banded leporinus. They have a need for dominance and kill any possible competitors (even passive fish like bala sharks). One of the best looking fish out there though:

Hard to blame any predators though, they are just doing what they were made to do.

Yes, but Luxo is reformed, right? Right?

 

[steveschuerger]

My Splendid Dottyback. Back when I had my 30 he harassed to the point it could be called indirect murder a McCoskers wrasse, 3 gobies and at least one of my peppermint shrimp.

 

[Doglips56]

We bought an arrow crab to eat the excess bristle worms. Well it started out small but within weeks had devoured many, but not all of the bristle worms. For whatever reason decided it was tired of those and we caught it munching on one of our shrimps! Was eating its head . Back to the LFS it went!

 

[The_Skrimp]

Emerald crab!

I had one kill multiple lps corals in the span of just the few days it took for me to catch him. He wasn’t eating the coral, just ripping them apart to get to whatever food was inside.

 

[Lost in the Sauce]

My orchid dottyback hates new fish. My pencil urchin, now back at the lfs, was taking out softies.

Neon dottyback for me.

Once it hit 4", homie decided CUC were food. It didn't just eat them. It played with them.

Also, in case anyone is thinking about a Checkerboard Wrasse, check here first.

 

[Mschmidt]

Neon dottyback for me.

Once it hit 4", homie decided CUC were food. It didn't just eat them. It played with them.

Also, in case anyone is thinking about a Checkerboard Wrasse, check here first.

If I can turn the new to me 120 salty, I will likely keep the dottyback. if not, he's back to the store before he outgrows the tank.

what's the checkerboard got here?

 

[beaker5377]

Couple of them. Early in the game I got a damsel not knowing better. It is now the oldest fish in the tank and has taken out 10 fish or so. The one that hurt was Adding 2 flame angels, they were fine together, but our powder blue decided to kill those off in no time and for whatever reason, decided to turn on his best friend Rabbit fish, and stressed him out so much he died

NOTHING In our tanks does what its supposed to lol.

Edit - forgot about the Malanarus wrasse that my wife wanted. I keep hearing of clean up crews, I haven't seen clean up crew members since we added that devil fish.

 

[Lost in the Sauce]

If I can turn the new to me 120 salty, I will likely keep the dottyback. if not, he's back to the store before he outgrows the tank.

what's the checkerboard got here?

That's the head of a clownfish hanging out of its mouth.

 

[Sharkbait19]

Yes, but Luxo is reformed, right? Right?

For now…but are they ever truly reformed.
She’s been in qt with her mate and a coral beauty for a while now and no issues though, so maybe she did turn a corner. Still trying to kill me though, she’d be the one to live 50 years out of spite.

 

[Waters]

I have had both a Purple Tang and a Kole Tang go rogue.....both were the only tangs in the tank at the time.

 

[Mschmidt]

@Projects with Sam

was just thinking about him.

That's the head of a clownfish hanging out of its mouth.

as a badge of honor?

 

[tbrown]

Neon dottyback for me.

Once it hit 4", homie decided CUC were food. It didn't just eat them. It played with them.

Also, in case anyone is thinking about a Checkerboard Wrasse, check here first.

I used to keep African Cichlids. I had a beautiful breeding pair of Electric Blue Mainganos cichlids. I also had an Oscar in the tank. She (Mainganos) was holding a full clutch of eggs in her mouth. They had just hatched and were showing eyes and tails and starting to really squirm around so she was close - maybe another week - to spitting out a couple hundred dollars for me. Groucho decided she looked like an edible wrapper for all the caviar she was holding and decided he felt like having a snack. My wife sent me a picture of the Oscar with the tail sticking out...

 

[Lost in the Sauce]

was just thinking about him.

as a badge of honor?

More likely a snack for later..

 

[davidcalgary29]

It ate my feather duster! And some zoas...a pencillus macro...a leather colony...my reefkeeping skills...my dignity...

my r

 

[MWFoster]

When I first started I found out the hard way that medium Frogfish and small Chalk Bass don't make for good tank mates. My Chalk Bass where disappearing for some reason and the Frogfish got big quick.

 

[sbbk]

I had 9 chromis, 3 different types, all got along for about a year. One of the bicolor chromis suddenly got aggressive and killed all the others. It got along with the remaining fish - niger trigger, cream angel, flame hawkfish, maroon clown and caused no further trouble for a year or so. Then one of those fish killed it.

 

[killerkosar]

I found out I had a spineback harry crab when I put a bleeding apple Scolly in my tank the next morning I found it sitting on it still after eating a 1/3 of it had to remove 1/2 my aqua scape to catch the little b@s*&rd

 

[alain Bouchard]

the beginner "me" was the worst killer my tank ever saw. happily, I am much less lethal these days