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Apr 21, 2020
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Hello, I am posting because I’m concerned my platy may have pop eye but I’m not entirely sure. I’ll post pictures at the end. He’s perfectly healthy otherwise so I’m having a hard time telling if he might have pop eye or if I’m just worrying about him too much. He’s my favourite fish and I’m absolutely in love with his personality so I need to do everything I can to keep him healthy. I mostly just need to know if he does have pop eye or if it is just the way his eyes look and if he has it what would be the next possible steps to take. Thank you.

He’s the yellow one. If these pictures aren’t clear enough I can try to get some more tomorrow, I just grabbed a couple quick shots tonight so I could post.
I can't tell anything from the pictures but if it does have an eye infection (pop eye), the easiest way to treat it is with big daily water changes and some salt.

Wipe the inside of the glass with a clean fish sponge.

Do a 75% water change and gravel clean the substrate every day for one week.
Make sure any new water is free of chlorine/ chloramine before it's added to the tank.

Clean the filter if it hasn't been done in the last 2 weeks. Wash filter media/ materials in a bucket of tank water and re-use them. Tip the bucket of dirty water on the garden/ lawn.

Then add some salt.
You can add rock salt (often sold as aquarium salt), sea salt or swimming pool salt to the aquarium at the dose rate of 2 heaped tablespoon per 20 litres (5 gallons) of water.

Keep the salt level like this for at least 2 weeks but no longer than 4 weeks otherwise kidney damage can occur. Kidney damage is more likely to occur in fish from soft water (tetras, Corydoras, angelfish, gouramis, loaches) that are exposed to high levels of salt for an extended period of time, and is not an issue with livebearers, rainbowfish or other salt tolerant species.

The salt will not affect the beneficial filter bacteria or plants.

After you use salt and the fish have recovered, you do a 10% water change each day for a week using only fresh water that has been dechlorinated. Then do a 20% water change each day for a week. Then you can do bigger water changes after that. This dilutes the salt out of the tank slowly so it doesn't harm the fish.

If you do water changes while using salt, you need to treat the new water with salt before adding it to the tank. This will keep the salt level stable in the tank and minimise stress on the fish.

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