I would like to know which Corydoras species from the Orinoco are suitable for a strong current river tank. This tank will be 2meter long. I currently don?t have setted it up but it I will somewhen this spring-summer and I want to know from now because Corydoras from the Orinoco are quite rare, at least here?
Also I would like to ask you if Corydoras venezualianus "black" fits the above because I found some yesterday and if they are what I am searching for,i am going to by them because I may not have the chance latter,so please,answer this last question quickly because I may loose them.

Something else I would also like to ask you is if there will be any problem with the Corys eating the food before plecos get to it?Or if I will have problem feeding pleco fry with the Corys?Or if the Corys will eat the eggs or the fry of plecos?
Thank you in advance