Bronze Corys Behaviour

the_lock_man

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Being fairly new to fishkeeping, I have a community tank, and am not particularly trying to breed any of my fish, but....

I have two bronze corys, I haven't the faintest idea of their genders, but recently they have been very active together. They will swim after each other at speed, and will often twist and turn around each other.

To the untrained eye, it looks like this might be mating behaviour, I just wondered if someone could confirm or deny for me.
 
not too sure tbh but my 4 bronze corys, infact, my previous julii ones would do exactly the same, when they are playing.

You should add 2 more corys to your group, they are best off in a min. of 4 x
 
a female is quite a bit wider than the male if viewed from above and maybe slightly longer.
corys are very playfull fish and as stated above prefer to be in as bigger groups as possible. if you do have both sex fish then it may well be a sign of mating. it normally happens when the female is full of eggs and the size difference is quite obvious. have a close look at the fish to see if you can identify them as male and female. if they are then it could be a spawning sign if they are both same sex then obviously just playing about as corys are known and loved for :good:
 
Couldn't tell mine apart till they got a bit bigger, the female will be noticeably bigger than the male, and mine have a almost small lump which forms in their belly, which im guessing is eggs, first female was huge before she first layed then layed a stupid ammount of eggs. As for their behaviour maybe just playing, but shows they are happy and if you do have a male/female they might spawn when they are ready. Would definately get some more though! group of 6 is good :good:
 
Thanks to all 3 of you for your input. Dodgy advice from LFS with regards to the number of corys, sadly, they reckoned 2 would be fine, and we believed them. My tank is a little overstocked anyway, so can't really rectify the problem in the way you suggest, until nature decides to create a vacancy, as it were. Thanks again.
 

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