i have two oscars prob about 6-8 months old both of which are shaking their caudal fins at each other...... is this a sure sign of getting ready to breed? or atleast a sign that they are opposite sex or could it be they are just two males trying to make a statement...... they are the only two oscars in the tank
oscars shaking caudal fin
- Thread starter vdawgs22
- Start date
My O's and Parachromis(es) do the same thing before, during, and after breeding. My male loiselli does it when I come up to the tank near his fry. Out of the five breeding pairs I have in my tank (see sig line for stock), all exhibit this behavior from time to time, some more than others.
To answer your question, it could mean they are about to breed. Or any number of other things. This behavior does not in any way guarantee that they are of the opposite sex. Further, two female Oscars can and do exhibit regular male/female breeding behavior including acting as a "mated pair" and laying then protecting their eggs. The eggs will just end up never fertilized and grow fungus, disappearing a few days later. This happens in my tank on a semi-regular basis. What I mean by semi-regular basis is that the Oscars (both females) will only lay eggs once every two to three months. The Parachromis(es), on the other hand, are dropping eggs like clockwork every three to four weeks. There is almost always two generations of fry from the same set of parents at any given time.
If you'd like to know for sure, post pics of your Oscars' vents and the experts here will surely be able to sex them. And post pics anyway, I love seeing Oscars.
To answer your question, it could mean they are about to breed. Or any number of other things. This behavior does not in any way guarantee that they are of the opposite sex. Further, two female Oscars can and do exhibit regular male/female breeding behavior including acting as a "mated pair" and laying then protecting their eggs. The eggs will just end up never fertilized and grow fungus, disappearing a few days later. This happens in my tank on a semi-regular basis. What I mean by semi-regular basis is that the Oscars (both females) will only lay eggs once every two to three months. The Parachromis(es), on the other hand, are dropping eggs like clockwork every three to four weeks. There is almost always two generations of fry from the same set of parents at any given time.
If you'd like to know for sure, post pics of your Oscars' vents and the experts here will surely be able to sex them. And post pics anyway, I love seeing Oscars.
i was just assuming if they were both trying to be dominant towards each other that they would be male.. i have no idea what sex they are..... as far as venting.. what are signs to look for that show their sex... they both seem to have the same size vents ... that have what looks like two small dots in them... i do not notice anything that pertrudes out
Ive seen my fish do it too, but never figured out why they did do/did it.
Also, I believe Oscars are like impossible to sex. Ive heard its only when they actually mate is when you can tell the sex. Could be wrong though.
Also, I believe Oscars are like impossible to sex. Ive heard its only when they actually mate is when you can tell the sex. Could be wrong though.
the tank is 50 gallons and i havent taken them out of the water to sex them i took one out few days ago to try to introduce him into my 90 gallon and he went nuts and caused a big splashing mess... only for me to later take him out of the 90 and place him back in 50 bc he would of gotten eaten but what is a much much much larger oscar (it looked like he was about double the size of the young one when viewed seperately in diff sized tanks... boy was i wrong)
