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post #1 of 4 Old 12-06-2011, 09:23 PM Thread Starter
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Cory Questions

Hello guys,

I just picked up some Pepper Cories for my tank last week. Unfortunately I didn't notice that there was a green cory in the mix as well, so I purchased a friend for him because I've read cories prefer to be in species groups of at least 3 in larger cory groups. With 8 cories in the tank, will the green ones be ok, or do they absolutely need a third? They both keep swimming up and down the sides of the tank, often on opposite sides. Is this stress, hunger, or do they just not like each other?

Another question: My pepper cories seem to enjoy swimming up to the top of the tank and hanging out there. I know that they sometimes eat some of the blood worms I toss in for my neons and danios, or any other food that stays at the top of the tank. Is this a sign they aren't getting enough food, or is this entirely normal behavior?

It's funny, I bought danios for the top, neon tetras for the middle, and the cories for the bottom of my tank, but sometimes the danios and neons are at the bottom and the cories are at the top

Anyway, thanks for any info you can provide. I'm learning as I go and I'm really enjoying this new hobby!
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post #2 of 4 Old 12-07-2011, 02:39 AM
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Originally Posted by RadMax8 View Post
Hello guys,

I just picked up some Pepper Cories for my tank last week. Unfortunately I didn't notice that there was a green cory in the mix as well, so I purchased a friend for him because I've read cories prefer to be in species groups of at least 3 in larger cory groups. With 8 cories in the tank, will the green ones be ok, or do they absolutely need a third? They both keep swimming up and down the sides of the tank, often on opposite sides. Is this stress, hunger, or do they just not like each other?

Another question: My pepper cories seem to enjoy swimming up to the top of the tank and hanging out there. I know that they sometimes eat some of the blood worms I toss in for my neons and danios, or any other food that stays at the top of the tank. Is this a sign they aren't getting enough food, or is this entirely normal behavior?

It's funny, I bought danios for the top, neon tetras for the middle, and the cories for the bottom of my tank, but sometimes the danios and neons are at the bottom and the cories are at the top

Anyway, thanks for any info you can provide. I'm learning as I go and I'm really enjoying this new hobby!

Would hold off adding any more fish and let those you have settle.
According to previous post's you added first fish (danio's) to this tank less than a month ago so it is fairly new tank.
Not much that swims is quicker at grabbing food than the danio's so I might consider feeding the corie's an hour after light's off for the day ,with food's like shrimp pellet's, krill,spirulina pellet's,and or the blood worm's (easy on these).
Cory's, neon's,danio's you have will appreciate cool, 72 to 76 degreeF clean water and I would be changing out 40 to 50 percent of the water each week with fresh dechlorinated water.(Were it me)
After a month or two,, you could add another couple of green cory's if you have the space.

The most important medication in your fish medicine cabinet is.. Clean water.
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post #3 of 4 Old 12-07-2011, 05:51 AM Thread Starter
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Thanks, 1077. Seems like they're just unsettled. I'll let them "relax" for a couple weeks and see how they're doing then.

I usually feed my danios and neons flakes and a couple blood worms, and I put a block of tubiflex worms on the cave in my tank for the cories to eat. They love those things!

I keep my tank at 76 degrees, and I change about 40 percent each and every week (Sunday is tank cleaning day).

Thanks for the help!!
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post #4 of 4 Old 12-07-2011, 12:49 PM
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I concur with 1077.

As for more green cory eventually (presumably this is Corydoras aeneus; we have fish profiles here, and you can click the shaded name to see that species' profile and photos) this is up to you. A third would probably be a good idea, but at the same time corys of whatever species usually addresses the shoaling issue. I try to have five of each species or at least a minimum of three of each species, but for various reasons I do have some species with only two, and even one. Depends upon the species.

Byron.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If youíre going to take it under your wing then youíre responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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