crazy noises at night?

[crazyfrog]

So this morning, all lights are off, I walked out to the living room where the reef tank is and I heard a low, methodical, croaking sound, like a frog. I walked up to the tank and it stopped. I took a few steps back and it started again. I brought out my flashlight and looked around the tank, nothing was unusual. What could possibly be making that sound? I have a yellow tang, a black sailfin blenny and a coral banded shrimp for livestock.
Any insights???

 

[whitey_028]

Things that make you go hmmm.

 

[michael_t]

Did you catch that show last year on NBC called “Surface”? It could be one of those things. You should kill it before it gets too big. I mean, these things get really big! :scared:

 

[dragonzim]

Originally Posted by michael_t
Did you catch that show last year on NBC called “Surface”? It could be one of those things. You should kill it before it gets too big. I mean, these things get really big! :scared:
That was my favorite new show last season! I was so upset when they cancelled it...

 

[ibew]

I think it may be your overflow every now and then mine does that 2

 

[bonebrake]

Originally Posted by Ibew
I think it may be your overflow every now and then mine does that 2
Agreed, probably your overflow.

 

[bach]

Surface was canxed....boo! If you think it is a critter are you using a red light to check the tank? The animals usually don't react to it. Just encase it's a reclusive Nibbler.

 

[murph145]

most likely a mantis shrimp that hitchicked in your live rock....
i have one in my 180g tank ive never seen him but i hear the cracking at night....
they have very powerful front arms that they use to crack the shells of hermits and snails to eat them....

 

[reefiness]

Originally Posted by murph145
most likely a mantis shrimp that hitchicked in your live rock....
i have one in my 180g tank ive never seen him but i hear the cracking at night....
they have very powerful front arms that they use to crack the shells of hermits and snails to eat them....
he said croaking sound not a cracking sound, i dont think mantis shrimp croak... unless im wrong but i had a mantis and it clicked

 

[crazyfrog]

yeah we just figured out last night that its definitely mechanical and coming from the overflow area. Thanks for confirming our idea!
I was worried it was a mantis shrimp but I looked it up and it wasn't a cracking sound it was croaking like a frog.
Thanks everyone!

 

[goulding.c]

Reef monster for sure!! I had one come out of my tank once. 12 Gauge solved that problem. SLugs work best, the buck shot takes to many shots to bring them down.