Odd angel behavior and coloration - Tropical Fish Keeping - Aquarium fish care and resources
LinkBack Thread Tools
post #1 of 7 Old 08-09-2009, 12:15 AM Thread Starter
Herky's Avatar
Odd angel behavior and coloration

So I got home tonight, it's late. My fish are very much asleep but I looked over at them to see what they were doing and I noticed my angels are all huddled together at the very bottom of the tank. The marbled angels look normal, but my two silver (striped) angels are almost completely white. I've seen them change colors before, going from light to dark and back, but never like this. Almost a total lack of coloration. Nothing has changed as far as tank conditions go, except we turned the AC down and it has been hotter than normal in the house.

No labored breathing, just slow steady breathing. No other obvious signs of diseases or stress. They were all normal and active today. Are they just in a really deep sleep maybe? I've never seen this before so it is worrying me a little. Well, quite a lot actually.
Herky is offline  
Sponsored Links
post #2 of 7 Old 08-09-2009, 02:28 AM
1077's Avatar
Have you checked temp in the tank? If all water parameters are in order= Zero ammonia,Zero nitrites. and NitrAtes twenty or below, I would not worry . Were lights off while fish were allowed to sleep? Fish are capable of picking up vibration long before we enter the room and are sometimes startled by lights being suddenly turned on in the aquarium. I had this happen with Discus that would turn completely dark when lights over the tank were suddenly turned on. I remedied this by placing a night light near the tank so that fish weren't startled .
Could also be that a pair has formed or is forming, Sometimes other cichlids will not display full color for fear of arousing the dominant fish or fishes interest ,,which sometimes leads to dominant fish asserting itself more than usual. Hope some of this helps.

The most important medication in your fish medicine cabinet is.. Clean water.
1077 is offline  
post #3 of 7 Old 08-09-2009, 07:10 AM
Fishin Pole's Avatar
+1 to everything 1077 said..........I was gonna also ask if the lights where on or off when this was noticed with your angels.....
Fishin Pole is offline  
post #4 of 7 Old 08-09-2009, 09:35 AM Thread Starter
Herky's Avatar
The lights were off. They are all fine this morning and back to normal color. I've seen them get fairly dim coloration before, but never like this. They were white...no stripes visible, not even silver...just a milky white. I just fed them and they are back to their normal selves. It really kinda freaked me out. Temp in the tank is 81, and water conditions are normal, stable. I have also never seen them huddle together like that, maybe I just haven't paid that much attention when it's late. I've seen them sleep before but normally they do it in the mid line of the tank, not down on the bottom among the plants and rocks. It was strange, but they seem fine now. I was just terrified I was going to lose them.
Herky is offline  
post #5 of 7 Old 08-10-2009, 07:11 AM
Fishin Pole's Avatar
I know some tetra species will lose their color temporarily when the light is off........my cardinals look almost white when my tank light first comes on, but within a half hour they color up and are fine............I would think this is whats happening to your angels..........Glad to hear thay are doing ok..........
Fishin Pole is offline  
post #6 of 7 Old 08-10-2009, 10:15 AM
Byron's Avatar
Assuming everything's OK as 1077 mentioned (no water problems), then FishinPole has it. Many fish, including angels, change their colour or pattern during darkness. Some fish more than others. Pencilfish for instance completely change...you would not recognize them as the same fish; all the lateral lines on all species become separated dots during darkness. Angels also do this (the striped ones).

I'm not a biologist and have never researched why this is, but it is completely natural. I have on a couple of occassions checked my tank well after darkness with a flashlight. In case you're wondering why, I did this a couple of times after first acquiring a trio of driftwood cats (Tatia perugiae) that spend all daylight hours sleeping in tunnels in the bogwood (hence their common name). They only become active and feed at night. I never saw them and wanted to ensure they were OK. I found them, swimming around playfully, eating tablet food put in for them; but I also noticed all the characins were greyish, faded colour and little pattern. I knew this occurred, just never had reason to see it before.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
Byron is offline  
post #7 of 7 Old 08-10-2009, 12:39 PM Thread Starter
Herky's Avatar
Yeah, like I said I've seen them get light colored before, but man they looked like ghosts. I'm not usually up that late at night, so I've never looked at them at that time. Now that I see they're ok, it was actually kinda neat to see.
Herky is offline  

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Forum Replies Last Post
Rainbow fish sick?! Odd coloration..... bigk_54 Cyprinids and Atherinids 2 12-05-2008 09:44 PM
Weird filter gunk and coloration Blaxicanlatino Beginner Freshwater Aquarium 35 07-04-2008 01:16 PM
weird live rock coloration sabazerehi Saltwater Fish Diseases 1 04-08-2007 06:17 AM
Fish Coloration Terms and Definition Lupin Freshwater and Tropical Fish 0 01-19-2007 06:19 AM
Behavior Lupin Beginner Freshwater Aquarium 0 01-11-2007 10:31 PM

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome