Corycat behaviour?

[Dave88]

I have 3 copycats unknown what sex they are.
I have them in a 190l tank with plenty of hidden bits and foliage. In the last 2 weeks all 3 that were normally active and all over the place have suddenly become recluse and only stay at the entrance to a log cave thing. One is always at the entrance?
Is this indication they are breeding or laying eggs?
I have never kept them before so I don't their traits


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[henningc]

No this is not breeding behavior at all. I'd get a water reading from the bottom of the tank. Pull a sample with a piece of airline using it like a dropper. You may have water issues. There is something wrong for sure, have you changed anything? Have you added decorations as sometimes they are not 100% aquarium safe?

Corys are egg scatterers and chase eachother wildly when in spawning mode. They also tend to eat eggs as fast as they lay them.

 

[Dave88]

I've recently added some more plants that I have had before from my LFS. Water parameters are all in order done a test 2days ago.
Apart from the plants everything is the same??


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[The boring name]

Are they gasping for air? Efficient water movement? Maybe you could add an air pump if not already in use.

 

[Dave88]

I have one and nope they are just sitting there go out for food with one always guarding the cave thing


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[mattcham]

Staying near cave means it is afraid. Something is scaring them. Could be visual stimulus or tactile (vibrational) stimulus causing the anxiety.

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[Dave88]

Would a red tail black shark and clown loaches do it?


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[mattcham]

Clown loach are friendly but red tailed black shark and rainbow shark are aggressive bottom dwelling species that will harass your Cory. Not a good mix.

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[Dave88]

They been together for 4 months and all has been good. I've just changed from sand to soil and gravel yesterday and they seem to be back to themselves again now


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[mattcham]

They been together for 4 months and all has been good. I've just changed from sand to soil and gravel yesterday and they seem to be back to themselves again now


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Re-scaping will "reset" established territories and territorial behavior, but your problem might reoccur in a couple of weeks. Keep a close eye on that red tailed shark...

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[Dave88]

Will do. Nearly lost him when changing it over! He decided to jump out the water and found him half way across the carpet. Lucky I came in the room again when I did


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