Tropical Fish Keeping - Aquarium fish care and resources

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chachaman50 09-07-2012 08:14 PM

Corydoras Tank, how many?
I'm setting up another tank, this time a 20 long with 260 gph filtration.
How many cories can I keep in there? I was hoping for a few different species and at least 5 of each.. how many?

Tankfull Tropicals 09-07-2012 10:17 PM

That is room enough for 12 maybe 14 if you maintain it with descent water changes. If you want to try spawning them you would be better off with just your favourite species.
For me that is Cory Sterbai. They have cute orange pectorals and are fairly easy to spawn once mature. Have fun.

chachaman50 09-08-2012 12:17 AM

Are you sure I can't have anymore? I would like to think I'm somewhat experienced with 5 tanks 8-)

fish monger 09-08-2012 10:12 AM

I'm a notorious over-stocker and I wouldn't go any higher than Tankfull's suggestion. Maybe get two groups of six.

Byron 09-11-2012 08:51 PM

I think 12-15 is the limit too. You should have some upper fish; without, corys can sometimes be skittish.

Corys must be in a group, as you probably know, and five of a species is ideal (or more of course). If you have as many as 12, you can have fewer of each species, I would not go below 3 intentionally. A number of species are in our profiles.


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