Noisy Chromis?

MarkD40 · 10/12/2009, 02:12 PM

I have noticed that when my MH's go out and just my actinics are on that I hear a low pitched knocking sound from my tank. I have 4 full grown blue/green Chromis and before they go to their bedrooms they chase each other back and forth. It seems that when they stop and start I hear the noise. It almost sounds like they are running into the glass but they are not. I don't observa anything else that could explain the sounds. Strange as it sounds it really seems to be the fish that are making this noise. Has anyone else noticed this?

Blown 346 · 10/12/2009, 02:14 PM

Never heard of that...

Have you added any new rock latley?? It sounds like you could have a mantis..

jason2459 · 10/12/2009, 02:19 PM

Never heard of it but I believe it. My Banggai Cardinals making a knocking sound all the time.

BeanMachine · 10/12/2009, 02:23 PM

I've read Chromis do that.

kkil4life · 10/12/2009, 02:27 PM

I've heard domino damsels do the same.
plus my 4 strip damsel used to do it, but I presumed it was the sound of it hitting the other fish (I gave the damsel away)

EdSnyder · 10/12/2009, 02:28 PM

Pistol Shrimp?

Blown 346 · 10/12/2009, 02:29 PM

I have never heard of chromis doing that. Interesting. never know what you will learn. You should get a video.

MarkD40 · 10/12/2009, 02:36 PM

No new rock for 10 years except for dead rock. No mantis or pistol shrimp. If the sound is made by them ramming into each other they would be black an blue because I can hear the sound from accross the room when it is quiet. Always something new with this hobby.

BTW, Blue/green Chromis are wonderful fish for any tank.

FlyinggFish · 10/12/2009, 03:20 PM

Did you know that betta fish (Chinese fighting fish), which are freshwater, also make that noise.
I've been trying to decide whether I have a mantis shrimp or its is my Bangaii Cardinal that is making the crazy loud (knocking) sound.
Very interesting that a chromis might make the sound.

dtartaglia · 10/12/2009, 04:44 PM

very interesting never heard of that !

redsea reefer · 10/12/2009, 05:38 PM

Quote:

Originally Posted by dtartaglia

very interesting never heard of that !

+1

André Silvestre · 10/12/2009, 05:54 PM

Mark, I confirm that.

I have some Blue Chromis in my tank and the sound they make is like a knock on the glass but they are not even close to the glass. They are posing to each other and making those sounds, like this:

Regards,
André

ludnix · 10/12/2009, 05:59 PM

When I had a school they did all the time. I'm down to one chromis now though and never hear it anymore.

acrodave · 10/12/2009, 06:04 PM

clown fish make clicking noise.. so i would think that all damsel fish can do it ..chromis damsel and clowns are in the same fam

EdSnyder · 10/12/2009, 08:28 PM

I have some blue chromis and pistol shrimp, I dont know who's doing it but I have plenty of noise coming from my tank.

Tetra84 · 06/04/2014, 03:43 PM

This is a pretty old thread.. but I've got a school of 4 black axil chromis and I also heard them emitting a strange knocking sound.. I had to do a web search and apparently I'm not alone. weird. Just had to post.

JAS5LF · 06/04/2014, 04:05 PM

Quote:

Originally Posted by MarkD40

I have noticed that when my MH's go out and just my actinics are on that I hear a low pitched knocking sound from my tank. I have 4 full grown blue/green Chromis and before they go to their bedrooms they chase each other back and forth. It seems that when they stop and start I hear the noise. It almost sounds like they are running into the glass but they are not. I don't observa anything else that could explain the sounds. Strange as it sounds it really seems to be the fish that are making this noise. Has anyone else noticed this?

Funny I noticed this last week as my Black Axil Chromis seem to make a knocking sound when they chase one another.

10/12/2009, 02:12 PM	#1
MarkD40 Registered Member Join Date: Feb 2006 Location: Kansas Posts: 647	Noisy Chromis? I have noticed that when my MH's go out and just my actinics are on that I hear a low pitched knocking sound from my tank. I have 4 full grown blue/green Chromis and before they go to their bedrooms they chase each other back and forth. It seems that when they stop and start I hear the noise. It almost sounds like they are running into the glass but they are not. I don't observa anything else that could explain the sounds. Strange as it sounds it really seems to be the fish that are making this noise. Has anyone else noticed this? __________________ My ship came in. Unfortunately it hit a reef. Current Tank Info: 110 gallon reef display tank, fish, LPS, SPS and mushrooms. A 75 gallon sump in basement with protein skimmer, 40watt UV sterilizer, RO/DI, refugium with chaeto, phosban reactor. 40 gallon frag tank.

10/12/2009, 02:19 PM	#3
jason2459 Registered Member Join Date: Jul 2009 Location: Iowa Posts: 9,671	Never heard of it but I believe it. My Banggai Cardinals making a knocking sound all the time. __________________ rebuild and recovery log: No more red house, you'll have to click on my name and visit my homepage! You can check out my parameters at reeftronics dot net website and look for my username. Current Tank Info: 180g mixed reef w/ a beananimal overflow to a dolomite RRUGF. \| 20g long G. Smithii Mantis Tank

10/12/2009, 02:36 PM	#8
MarkD40 Registered Member Join Date: Feb 2006 Location: Kansas Posts: 647	No new rock for 10 years except for dead rock. No mantis or pistol shrimp. If the sound is made by them ramming into each other they would be black an blue because I can hear the sound from accross the room when it is quiet. Always something new with this hobby. BTW, Blue/green Chromis are wonderful fish for any tank. __________________ My ship came in. Unfortunately it hit a reef. Current Tank Info: 110 gallon reef display tank, fish, LPS, SPS and mushrooms. A 75 gallon sump in basement with protein skimmer, 40watt UV sterilizer, RO/DI, refugium with chaeto, phosban reactor. 40 gallon frag tank.

10/12/2009, 03:20 PM	#9
FlyinggFish Registered Member Join Date: Jun 2008 Location: Ft. Lauderdale Posts: 1,042	Did you know that betta fish (Chinese fighting fish), which are freshwater, also make that noise. I've been trying to decide whether I have a mantis shrimp or its is my Bangaii Cardinal that is making the crazy loud (knocking) sound. Very interesting that a chromis might make the sound. __________________ Most women buy clothes, I buy corals Current Tank Info: Biocube 29

10/12/2009, 05:59 PM	#13
ludnix Registered Member Join Date: May 2007 Location: California Posts: 3,031	When I had a school they did all the time. I'm down to one chromis now though and never hear it anymore. __________________ -Eric Sutter Current Tank Info: 14g Biocube

10/12/2009, 02:14 PM	#2
Blown 346 Registered Member Join Date: Apr 2004 Location: Rockford, Illinois Posts: 6,596	Never heard of that... Have you added any new rock latley?? It sounds like you could have a mantis..

10/12/2009, 02:23 PM	#4
BeanMachine Registered Member Join Date: Nov 2008 Location: Orange, CA Posts: 11,200	I've read Chromis do that.

10/12/2009, 02:27 PM	#5
kkil4life Registered Member Join Date: Aug 2009 Posts: 517	I've heard domino damsels do the same. plus my 4 strip damsel used to do it, but I presumed it was the sound of it hitting the other fish (I gave the damsel away)

10/12/2009, 02:28 PM	#6
EdSnyder Registered Member Join Date: Jun 2009 Location: Port Orange, FL Posts: 527	Pistol Shrimp?

10/12/2009, 02:29 PM	#7
Blown 346 Registered Member Join Date: Apr 2004 Location: Rockford, Illinois Posts: 6,596	I have never heard of chromis doing that. Interesting. never know what you will learn. You should get a video.

10/12/2009, 04:44 PM	#10
dtartaglia Registered Member Join Date: Apr 2008 Location: central cali Posts: 17	very interesting never heard of that !

10/12/2009, 05:54 PM	#12
André Silvestre Reefaholic Join Date: Feb 2006 Location: Cascais - Portugal Posts: 266	Mark, I confirm that. I have some Blue Chromis in my tank and the sound they make is like a knock on the glass but they are not even close to the glass. They are posing to each other and making those sounds, like this: Regards, André

10/12/2009, 06:04 PM	#14
acrodave REEF NERD Join Date: Nov 2006 Location: maryville tn-- work in knoxville Posts: 4,187	clown fish make clicking noise.. so i would think that all damsel fish can do it ..chromis damsel and clowns are in the same fam __________________ Peace,Dave Superman puts on Tim Tebow pajamas when he goes to bed The Heisman as a sophomore nuff said Less technology more biology Tattoos are the only art you can take to the grave Current Tank Info: 26gal bow,20gal mantis tank/fuge150wHQI,20k AB Seio 620 maxijet1200x's 2 on a wave maker. all sps

10/12/2009, 08:28 PM	#15
EdSnyder Registered Member Join Date: Jun 2009 Location: Port Orange, FL Posts: 527	I have some blue chromis and pistol shrimp, I dont know who's doing it but I have plenty of noise coming from my tank.

06/04/2014, 03:43 PM	#16
Tetra84 Registered Member Join Date: Nov 2011 Location: Charleston, SC Posts: 321	This is a pretty old thread.. but I've got a school of 4 black axil chromis and I also heard them emitting a strange knocking sound.. I had to do a web search and apparently I'm not alone. weird. Just had to post. __________________ Fate is like a strange, unpopular restaurant filled with odd waiters who bring you things you never asked for and don't always like. Current Tank Info: 57 Gal Rimless Reef