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I picked these up from a proper shop the other day, marked C. blochi and C. napoensis but I beg to differ.

These I wonder if they might be C. leopardus or possibly a C number? and these more likely C bilineatus?

Hi snowball,

Consider or maybe , and maybe . Those lineage 5 fish are tough, so I'm probably wrong on that, but definitely not C. napoensis.

Cheers, Eric

I'm happy to go with C. bilineatus for the ln5 fish and the lfs has confirmed the others were supplied as C102 - I really like them and purchased an additional two today.

Hi,

Corydoras bilineatus is a species that you would not expect to find in the pet trade, so I would exclude this species, there are many forms that are much more likely...
I fully agree that this is a really a tough group for ID'ing, I'm leaning towards CW029 without being sure though...

Cheers,

Thank you Karsten that is interesting, I did not realise C. bilineatus was not readily available in the trade. I will get some better shots of my fish when they have properly settled into the tank.