Why Do I Keep Losing Albino Corydoras? Lost 4 So Far In Perfect Water , Only One Left.

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Julii Brainard Profile
Julii Brainard answered
Is this the only aquarium fish you keep losing?  Are you keeping any other fish in there, and are they all doing ok?

Because Corydoras are normally very hardy fish, who will put up with poor water conditions, so they would typically be among the very last to die.

Assuming that when you say "losing" that you mean they die.  If they jump out of your tank, that's a whole 'nother problem and set of solutions.

One thing, Albino Corydoras are sensitive to salt, more so than some other fish.  Is there any chance the salinity isn't what it should be?  Can you test it?

More details about their exact preferences.  You'll see that they have a much bigger range of (compared to other freshwater fish) about temperature, pH, and water hardness.  But still worth making sure they are within the recommended conditions.

If all the fish you've lost came in one purchase/batch, and have died within a short period, I would strongly suspect some kind of disease got them.  Might be worth asking in local shop about suitable potions to add to the water that might kill the usual suspect bacteria or viruses.
thanked the writer.
George Griffiths
George Griffiths commented
I have 25 other fish incl 10 Neon Tetras all are fine and growing only the Corys died. They were all from the same shop and bought at the same time. I still have one albino left and he's flourishing. Water checked weekly and always 100% and changed every 7-10 days. Your response confirmed my theory that they were a sick batch. Buying some new tomorrow from different supplier.
Many thanks for your help

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