Taking out an aggressive fish?? - Tropical Fish Keeping - Aquarium fish care and resources
LinkBack Thread Tools
post #1 of 7 Old 01-22-2009, 10:29 PM Thread Starter
New Member
cathypodd's Avatar
Unhappy Taking out an aggressive fish??

I have 6 Columbian tetras that have been together for almost if not more than 6 months. The biggest one has been bullying for the last couple months and recently I'm finding him nipping. I honestly don't know what to do. If I take him out, will another become dominant? Or should I take them all back to the LFS and get something else? It stresses me out!

Pictures of our fishies
10g: 6 Columbia Tetras, 2 cory catfish
1g: 1 blue male betta (named Poohead)
6g: 3 baby Yucatan mollies
cathypodd is offline  
Sponsored Links
post #2 of 7 Old 01-24-2009, 01:30 PM
tophat665's Avatar
In a 10 gallon, the Columbians are probably feeling a little crowded and taking it out on each other. The solution is a bigger tank, and preferably another 3 corys and 4 tetras. So a 20 high would work, a 20 long better, and a 29 or 30 better still. If a bigger tank is not an option, then smaller tetras - glowlights, neons, embers, black neons, flames, lemons - something that will stay 2" or less and isn't super active (Paraguay white tips, dawn tetras, gold tetras, rummies, bloodfins: these all meet the size requirement, but really ought to have at least 30" of swimming space.)

On the cories, they would probably be happier in a group of 5 or more.

Logic is only the beginning of wisdom
tophat665 is offline  
post #3 of 7 Old 01-25-2009, 11:56 AM
willow's Avatar
nothing more to add on top of what tophat has suggested,
just wanted to agree. :)

when you set up a new tank,hide an extra
sponge or two behind some decor,that way you have
something seeded for you next filter.
willow is offline  
post #4 of 7 Old 01-27-2009, 08:30 AM Thread Starter
New Member
cathypodd's Avatar
ok, thanks guys!

Pictures of our fishies
10g: 6 Columbia Tetras, 2 cory catfish
1g: 1 blue male betta (named Poohead)
6g: 3 baby Yucatan mollies
cathypodd is offline  
post #5 of 7 Old 04-06-2009, 11:19 AM
New Member
Jai ullu's Avatar
Nice betta! I have 1 that looks exactly like him and a few other kinds of fish. I really suggest you take the agressive one out and wait a while and if others become dominant, take them all back to the pet store.
Jai ullu is offline  
post #6 of 7 Old 09-28-2009, 07:58 AM
New Member
ironside's Avatar
I have two pairs in a 100 gallon tank and they get along just fine among themselves and with the other fishes.
ironside is offline  
post #7 of 7 Old 09-30-2009, 09:35 PM
Space could be the issue like mentioned above. Also a few more cories would be better for your setup...
My lone beast of a black skirt tetra which is a monster was being a bully, nipping and chasing others, so I put him into my "quarantine" tank for a day or two. When I put him back into the main aquarium he hides in the back of the aquarium behind the plants, under the heater. He is starting to come out more now. But taking me out ended his agressive behaviour.

Just thought I would share my little incident. I also agree with tophat!

Vancouver, B.C. Canada
Rohland 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
[HELP] Taking care of good fish in a bad tank thebangzats Beginner Freshwater Aquarium 2 04-19-2010 04:17 AM
Is this fish aggressive? GrandAmGTTT Beginner Freshwater Aquarium 4 03-02-2010 01:18 PM
Taking fish pics mrdemin Off Topic Discussions 3 11-19-2009 10:05 AM
Moving house and taking the fish too! Anflex Beginner Freshwater Aquarium 3 11-02-2007 06:18 PM
Aggressive Fish. Bryson06 Beginner Freshwater Aquarium 2 08-12-2006 09:42 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