Best substrate for cory cats

I am interestedin trying to breed cory cats and have heard its not
necessary to use any substrate but have also heard you need substrate. I
have been told that you can use coarse gravel, builders sand, pieces of
slate or glass, or marbles.

Do they need deep tanks or shallow tanks?

Does anyone here breed corys? Any help is appreciated.

HC

"Huey" wrote in message
. 236...
I am interestedin trying to breed cory cats and have heard its not
necessary to use any substrate but have also heard you need substrate. I
have been told that you can use coarse gravel, builders sand, pieces of
slate or glass, or marbles.

Do they need deep tanks or shallow tanks?

Does anyone here breed corys? Any help is appreciated.
==========================================
I always believed the closer you can get to their natural habitat the
better. I saw a pair of gray cory's spawning in a tank at PetsMart last
week.
--
RM....
Zone 6. Middle TN USA
~~~~ }((((* ~~~ }{{{{(ö

Huey wrote:



Do they need deep tanks or shallow tanks?

Does anyone here breed corys? Any help is appreciated.


I go with sand; pool filter sand is cheap; clean and less abrasive than some
others. watching corydoras barbling through the sand is one of the
pleasures of keeping them. that said I also keep a variety of
rock "beaches" and wood in their tanks as well.

I would not tend to keep them in tanks over 24" as they have a passion for
darting to the surface.

I like species groups in odd number of nine or more.

a cool water change of 25-30% will inevitibly spawn furious breeding
behaviour.

Bran