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!
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.
nothing more to add on top of what tophat has suggested,
just wanted to agree. :)
ok, thanks guys!
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.
I have two pairs in a 100 gallon tank and they get along just fine among themselves and with the other fishes.
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!
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