I have two PJ cardinals about 2 months ago and they have been together in my DT for a month. They both eat and act mostly normal but lately one has been acting more aggressive to the other with the result that the latter is starting to not look as vibrant - some tear on the fins, not as bright coloring but still eating. They are my only two fish - have one percula in quarantine. Will the aggression dissapate as I add other fish? Should I add another PJ cardinal ? I originally wanted three but the store only had three and the third wasnt eating and looked sick. Does anyone know how to sex them?
Help with PJ Cardinals
- Thread starter jejton
- Start date
- Location
- Flushing, NY
fighting for domination.. probably same sex
the winner will harass the loser and the weaker cardinal will probably cower in the corner after he gets beat up enough until he starves to death.. that is unless you have a large enough tank with LOTS of hiding spots.. then he might be able to run away enough to heal but if it already has torn fins.. probably not
the winner will harass the loser and the weaker cardinal will probably cower in the corner after he gets beat up enough until he starves to death.. that is unless you have a large enough tank with LOTS of hiding spots.. then he might be able to run away enough to heal but if it already has torn fins.. probably not
- Location
- Flushing, NY
Based off my banggai cardinal experience...which should be very similar
I don't consider a 65 large because its only 3' in length.
and you need to remove the weaker one, adding another one will get either let get the 3rd beat up as well if its the same sex, if its the opposite sex, the dominant one will probably try to mate with it and they'll gang up on the weak one. Either way the weak one is screwed.
I don't consider a 65 large because its only 3' in length.
and you need to remove the weaker one, adding another one will get either let get the 3rd beat up as well if its the same sex, if its the opposite sex, the dominant one will probably try to mate with it and they'll gang up on the weak one. Either way the weak one is screwed.
- Location
- Staten Island
The way to stop the aggression is to get a bigger tank..lol..j/k... I had 4 and I don't know if i got lucky or they change sex some how.. all were fighting one day and the next day they were paired off and then eggs in the mouth every 2 weeks.. One pair to each side of the tank..
I completely agree, in your tank they will go at it until one of them is dead.
I am some what speculating on this point, but you may not have any better luck with two different types of cardinals of the same sex either.
I need a smiley slapping his head and saying "duh".
That might work. I have a banggai that I keep in a holding tank. My plan is to get a couple of more and then introduce them together in a controlled setting until I flush out a pair. Cardinals can be sexed, but the differences are very slight and I do not think that they are readily apparent until they have spawned for the first time.
ok so I might put one of them in the sump, buy 1 or 2 more, quarantine them and then add all three back in at the same time. Would that be ok or keeping it in the sump for 2-3 weeks be worse than leaving him in the tank? He is eating and the tank has no other fish so there are plenty of nooks and crannies for it to hide in ( though he seems to prefer hanging out with the bully. go figure).
Should no be a problem, as long as there is no chance of him getting caught in a pump.
I bought two young PJ's and they are now in quarantine with the clownfish. I will move the existing PJ into the skimme return section of my sump ( slow flow and some rocks and cheato in there so we will stay happy and fed ) and after a couple of weeks I will introduce all four fish into the DT together with the first cardinal. Hopefully they'll work out and maybe get a pair out of it. If I do, I will trade out the other two. I'll let you guys know how it works out.
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