Well i mean you did say "
People Like You" so I figure you mean that in a bad way. So no answer to my statements? im just going along with what your saying. This to me is a friendly argument or debate.
Where I left off:
"Corydoras come from South America, between Argentine and Columbia, with the vast majority originating from the Amazon basin. Their natural habitat is in clear, slow moving streams and shallow rivers, usually where there is vegetation at the banks. Although they can be found in gravely areas"
http://www.thinkfish.co.uk/article/corydoras-catfish#sthash.Rdep4JdF.dpuf
"Open areas are also used for scavenging activities, and the most important thing here is the substrate, which should be fine rounded gravel or sand."
Animal world.com says: "Because these fish have sensitive barbels it is preferable to use sand or fine gravel to keep their barbels in good condition."
All these places im getting these quotes from
must be unreliable sources
Cynic from AquariumAdvice says: "In my experience as long as the substrate isn't jagged cories are good with most substrate. Yes sand is likely preferred but in terms of barbel length I've found that tends to be associated more with nitrate levels than substrate."
Then there is DrFosterSmith: "Cory Cats are members of the armored catfish family. Different Corydoras species are found across South America. In the wild, Corys are generally found in smaller streams, at the edges of rivers, and in marshes and ponds. Most species are native to slow-moving, shallow, and clear water and forage amongst sand,
gravel, and detritus for insect larvae, worms, vegetable matter, and other food."
etc
etc
etc
