Suggestions for an overly aggressive fish?

  • We are currently upgrading MFK. thanks! -neo
yes
I usually don't like to argue on forums and try to advice / help where I can but I feel like I have to make my point clear. Stanzzzz7 Stanzzzz7 you're talking about mutilating...? Do you even know how my NGT looks? Please stop assuming things. Here's a fun fact for you, all the flamingos kept in open air zoos, how do you think they prevent them from flying away? They trim their wings so they can't fly. And here is a picture of my NGT that I just took, I've had this guy since he was 4", and is the biggest NGT that I've seen. Also, all those people walking around with parrots on their shoulders, how do you think they prevent them from flying away...? Is it inhumane? Maybe, but trimming a fish's tail (which grows back) is definitely better than what we do with birds.



Everyone is entitled to their opinion. And please check out the picture of my fish before shutting out and calling names.



Please check out the picture below and tell me if he looks maimed.

https://imgur.com/Y6lbzv2

yes he looks maimed. lol.
 
Yes he dies look maimed.
What strange philosophies some people have.
Because people clip birds flight feathers it's OK to cut your fishes tail off(wtf) seriously ?
With this logic I can cut my dogs feet of cus it chases cats.
You have many options with aggressive fish.
First off,seperate them with a divider or re home them.
House them in an appropriate sized tank so the fish has enough territory within that space,and tank mates can live in harmony around it.
My favourite option,do more research and buy fish that are peaceful enough to Co exist.
To hold on to fish that keep killing tank mates,or to keep adding tank mates that keep getting killed is really a very selfish practice. Cutting part of the fish away to solve the problem temporarily,is another level of selfishness.
Sunnysjourney has little to no regard for his fish,the advice he has given is probably the worst I have seen given on this forum.
Anyone reading this thread,please do not try this. It will be extremely stressful to the fish,it will leave them stressed and open to infection,and above all its just a bloody horrible thing to do.
 
So many ways of handling the same concept :p
Stanzzzz7 Stanzzzz7 , did you look at Gill Blue Gill Blue 's link?
Is it better in your opinion because it doesn't involve "maiming" the fish, even though it is undoubtly more stressful for the fish involved?
 
Better than cutting parts off the fish for sure.
Still not a practice I would engage in.
 
Aggression can be brought on by other factors, not just the personality of the fish.
Years back I bought a female swordtail fish. The moment I put her in the tank she'd go after my corydoras and nip them constantly. Now this is not a behaviour from a swordtail fish but she did it, to the point I was stuck to the glass tapping, trying to stop her. Two days later I realised my tank had quite the reading for ammonia....Something had brought on a mini spike that lasted a week. Once I sorted the water quality, the fish completely stopped being aggressive....

Obviously, some fish are naturally aggressive, but the level of aggression maybe brought on by different factors, water quality, tank mates, lack of cover, small tanks, etc..I generally don't get why one buys an aggressive fish, then stuffs the tank with other potential targets for same fish....
 
  • Like
Reactions: SouthTxAquaman
This has turned into quite a bizzare thread. To the OP, If you want to keep it with the convict and they can coexist that's good, if not I would consider taking it back to the shop if you can. Like you said you made a bit of a mistake, it happens but it's how you deal with it that matters.
As I said previously I would highly recommend you don't chop off your fishes tail or poke it with a stick.
 
it’s mainly because I can’t afford another Aquarium at the moment. He’ll be in his own space as soon as I get the tank.

No you can afford to keep him by himself. Remov the other fish and give him his own tank
 
  • Like
Reactions: Stanzzzz7
I really appreciate everyone's feedback on this thread. As an update:

Last I left you, the JD had just had her tail handed to her by the convict and was in the corner nursing her wounds. Since the rumble, she has come back to her full beautiful color, and her and the convict are getting along swimmingly :P also, I checked with the LFs that I bought her from, and they "forgot" to mention that she had been purchased and returned due to aggression "10-12 times" over the past month. I'm sure the stress of all those moves alone only aggravated the situation. I'm blessed that she seems to have calmed down and found a tank mate she is content with.

I know JDs are aggressive, so I was expecting a bit she just had more that I expected. Moving her in with a bigger bruiser was the perfect choice for this situation. They are even acting cozy like there could be some mating interest in the future.

Again I appreciate Everyone's feedback here!

As a quick follow up question, I have a very calm JD I believe to be male (I'm no pro at sexing fish) and was initially hoping to try my hand at breeding them as a pair. With her more aggressive nature and larger size (currently she has him by about 1"), will this cause big issues with breeding? I know it's really a case by case basis, I was just wondering if someone had some similar experience :) still learning! Thanks y'all!
 
  • Like
Reactions: bathawk and J. H.
As a quick follow up question, I have a very calm JD I believe to be male (I'm no pro at sexing fish) and was initially hoping to try my hand at breeding them as a pair. With her more aggressive nature and larger size (currently she has him by about 1"), will this cause big issues with breeding? I know it's really a case by case basis, I was just wondering if someone had some similar experience :) still learning! Thanks y'all!

JD's are actually one of the easier species to sex, if there is solid blue/green coloration on the gill plate the fish is female.
Stole this pic from google, female on the left male on the right
jd.jpg

As far as breeding with the smaller male, it is hard to say how the female would react really. Only way would be to try putting them together, and keep a close eye on them ready to remove or divide them. It might be smart to wait until the male is larger than her, since he is mellow and she is crazy.
 
MonsterFishKeepers.com