cloudy eyes

[plantman3]

Two weeks ago I received six adult discus. Prior to shipping, the discus appeared to be in perfect health. Within 24 hours after arrival, three of the fish had developed cloudy eyes. I have been making daily water changes but the condition of the discus has remained the same. My ph, has been stable. Ammonia, nitrate, and nitrite have are within normal ranges. I purchased Furan-2 but I believe it is harmful to biological filters. I am reluctant therefore to use it. Looking for recommendations on how to deal with this issue.

[rickztahone]

Don't use the meds quite yet. How much water are you changing daily? You can add some salt to help as well. If you are chaning less than 50% of water daily, increase it to 75%.

[Eddie]

Possibly just burn of some sort, ph or ammonia. Keep the water super clean and the eyes should recover.

[plantman3]

I am limited to changing 25% of water a day. If I increase the amount of tap water added to the tank (240 gallons), my ph drops drastically (7.6 to 6.8). I'm assuming that the fish were injured during transport or when I transferred them into the aquarium.

[rickztahone]

I am limited to changing 25% of water a day. If I increase the amount of tap water added to the tank (240 gallons), my ph drops drastically (7.6 to 6.8). I'm assuming that the fish were injured during transport or when I transferred them into the aquarium.

That is quite a large tank. You should be fine with 25% daily. How stocked are you in that tank? Have a picture?

[plantman3]

I can forward you a photo tomorrow. I have six 7" and two 6" discus. That's it.

[rickztahone]

That is quite understocked to the point where I think you will be fine with your 25% WC's. Other may think differently but I think you will be fine.