Congo Tetras becoming aggressive
Tropical Fish

Tropical Fish Keeping - Aquarium fish care and resources » Freshwater Fish and Aquariums » Freshwater and Tropical Fish » Characins » Congo Tetras becoming aggressive

Congo Tetras becoming aggressive

This is a discussion on Congo Tetras becoming aggressive within the Characins forums, part of the Freshwater and Tropical Fish category; --> My older Congo Tetras are seemingly becoming aggressive towards the younger Congos and shoo off other fish, also theyve started to hunt down and ...

Check out these freshwater fish profiles
Golden Pencilfish
Golden Pencilfish
Bleeding Heart Tetra
Bleeding Heart Tetra
Reply
LinkBack Thread Tools vBmenu Seperating Image Search this Thread vBmenu Seperating Image
Congo Tetras becoming aggressive
Old 06-21-2012, 12:08 PM   #1
 
Molinious's Avatar
 
Congo Tetras becoming aggressive

My older Congo Tetras are seemingly becoming aggressive towards the younger Congos and shoo off other fish, also theyve started to hunt down and chase the CRS which they have never done before.

They are usually so placid i dont get the change in temperment.

Is it something to do with breeding or another natural occurance?

Any information would be greatfully taken on board.

Altho this is disturbing shift in behaviour it is also quite comical after theyve just chased another inhabitant they immediately come to the front of the tank as tho there looking at me like a naughty child would
Molinious is offline   Reply With Quote
Old 06-22-2012, 12:49 PM   #2
 
Byron's Avatar
 
Probably normal behaviour, but if you could take a video and post it I could be more certain. This species is very active, mine hold relay races down the tank regularly.
Byron is offline   Reply With Quote
Old 07-04-2012, 03:30 PM   #3
 
dave56's Avatar
 
Sometimes fish change temperment as they mature. Usually for no apparent reason. They just become grumpy towards the other fish. This has happened to me several times with different species. If you have enough tank space, you might try increasing the size of the group ti disperse aggression.
dave56 is offline   Reply With Quote
Old 07-04-2012, 05:41 PM   #4
 
jaysee's Avatar
 
Quote:
Originally Posted by dave56 View Post
Sometimes fish change temperment as they mature.
Exactly.

Congos are pretty aggressive (for tetras) - that sounds like normal behavior to me. Mine (fully grown) are only placid when they are sleeping. Also, their behavior changes throughout the day. There are times when they beat the crap out of each other, and times that they are all just milling around together.
jaysee is offline   Reply With Quote
Old 07-06-2012, 08:57 PM   #5
 
kaythenewbie's Avatar
 
How many do you have? When I lost a few black phantoms, the rest (4) became extremely aggressive towards each other and the other fish in my tank. They also began to direct the majority of their aggression toward one specific black phantom in the tank. Once I added more, their aggression spread out and calmed again. Tetra stress out if their in too small of a group.
kaythenewbie is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Congo tetras in the community aquarium beetlebz Characins 12 02-11-2012 12:00 PM
Congo Tetras moh614 Beginner Freshwater Aquarium 3 01-04-2010 08:58 AM
congo vs emporer tetras briarmoor Characins 4 03-08-2009 09:46 PM
Congo Tetras jeaninel Freshwater Journals 8 05-13-2008 08:17 AM
Congo Tetras jeaninel Characins 9 04-21-2008 02:21 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search



All times are GMT -5. The time now is 12:27 PM.