Peppered Corys Can’t Swim - Aquarium Forum
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post #1 of 2 (permalink) Old 04-10-2018, 09:05 AM Thread Starter
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Peppered Corys Can’t Swim


Hello I have had a autolinking image fish in a 3 gallon for a couple months and decided to get an upgrade so I purchased a 10 gallon tank last night. Along with the 10 gallon tank I also bought 3 Cory’s. After I set up the tank with a filter and heater I acclimated the Cory’s to the water and let them free, they were acting fine darting around exploring and they were friendly with the autolinking image and I watched them for about an hour.

The next morning I checked on them and they were floating at the top of the tank! At first I thought they were dead and poked them with my net but then they started swimming around trying to fight to the bottom. They would keep pushing and pushing trying to swim down and then would give up and slowly float to the top. I was worried and kept observing and trying to prompt them to move and about 20 minutes later one was dead at the top 😞 I put him in my bettas old tank after conditioning it and went to check on the other one. The other fish was floating at the top (alive) and still could not swim down. I don’t know what the issue is? Please help.
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post #2 of 2 (permalink) Old 04-17-2018, 10:18 AM
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Re: Peppered Corys Can’t Swim

Once you have your aquarium nitrogen cycle under control (Google "Aquarium Nitrogen Cycle" and educate yourself on the cycle a little bit), you could work on the swim bladder issue your cories seem to be having. Buy some frozen shelled peas at the grocery store, thaw them, mash them up, and mix them with a little mashed garlic, then feed them to your fish. The peas help with the swim bladder issues, and the garlic makes it tastier and more appealing for the fish.

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