Oscar,possible eye disease (white inside eye)

My Oscar has developed a weird white coating over his pupil (this is inside the eye over black pupil)

I don't want him to go blind or anything,i have noticed that he will usually only show his side with his good ye when it's feeding time but he does seem to be able to track my hand with his bad eye.

I don't think my water is a problem (although i'm only going to buy a testing kit this weekend,didn't get a change to do it yesterday),i do 2x30% water changes a week with aged water.

Is this serious,what is it and how to i treat it?

Edit:This doesn't seem to be pop eye,the rest of the eye is fine.No swelling what so ever.

Can it be Eye fluke?

 

@Altum this ones for you

 

In the meantime, can you please fill in the Disease questionnaire? This will make it easier for us to help you because we will already have all the answers to the questions you will inevitably get. Here's a link:
Identifying Disease Questionnaire

 

General
Where do you stay? : Pretoria

How long have you been keeping fish? : about 3-4 years

How long has the tank been running before you added fish/this fish? : 3Months

What fish do you have in your tank (type,number,size)? :2 Oscars (17cm each),3 Firemouths (7-9cm each),Golden CAE (around 14cm),Synodontis (15-17cm)

When did you last buy any new fish? : A few weeks ago,in the middle of last month (syno)

Which food are you feeding and how often? : Qualikoi cichlid,Gold Cichlid and algea wafels,i feed once a day at 5PM.

Disease

Describe the problem that the fish is having (behaviour, breathing, excretion (droppings), food intake, colour)? : White over right eye pupil,almost like a bubble.

Is the fish eating? Yep

Has the problem occurred before?: Nope

Have you treated the problem and how? No,i don't know how.I can't find information on it.

Have you had any other problems in the past? Yes

What were they? Minor Bruising,scales coming off and pale coloration.

Did you treat for these problems? Yes

How? Bruising is normal with Oscars,i kept good water quality and added a bit of salt as well as making sure the wounds stay clean.Scales coming off were due to a combination of stress and fighting,pale coloration was from the Oscar showing submission to the Dominant Oscar.Adding more Driftwood to break line of sight helped,scales are growing back slowly and both Oscars have taken dark coloration.

Your aquarium & Maintenance

How big is your tank? : 60/165/50

How many liters of water? about 500L

What type of filter do you run? 1xVA F300 (1000lph) and Tetra-EX-1200 (1200lph)

What is IN the filter? VA F300 =Standard sponges. EX1200=Bio balls,wool/cotton,sponges,activated carbon and those white cylinder things.

How many litres per hour is the filter rated for? Check above,2200lph combined.Closer to 1900lph though.

How often do you clean your tank? : Twice a week.

How do you clean your tank? 30% water changed twice a week with aged water,minor algae cleaning with sponge,siphoning gravel,Cleaning VA300 one a week and EX1200 once a month.Both with tank water that has been drained.

How much water do you take out for Water change? 140L,about 30% twice a week.

Do you prepare your water for water changes? How and what do you add?,140L of water is added to a bin and treated with prime after each water change (i fill up the bin and treat it with prime after a water change on Wednesday so i can use it on Sunday and then fill it up again Sunday and treat it so i can use it the next Wednesday,etc etc.)

What water do you use. Aged and treated tap water.

What substrate do you have? Pool filter sand

What else is in the tank? Driftwood (some still leaching),2x Amazon Swords,2x Fake plants,1xOrnamental cave

Water parameters in your aquarium

Describe the water (smell and colour)? Yellow (because of leeching),smells fishy but barely noticeable.

Temperature of the water? 27-28celsius

General hardness (GH)? Waiting on test kit stock.

Carbonate hardness (KH)? ^

Ammonia : ^

Nitrite (No2-)? ^

Nitrate (No3-)? ^

pH? ^

How did you test these? Have you checked the expiry date on the test kits? ^

Lights

What light do you have? Boyu T8/40w Aquarium light tube.

How long is the light on for? 7-8H

Do you have lots of plants in the tank (real or fake)? 2 real,2 fake.

How do you fertilize the plants? I haven't yet.

If possible, can you post some pictures of

I'll post some tommorow.

 

Cloudy eye is sometimes caused due to a bacterial infections.(mostly due to poor water quality)
Do more frequent water changes.

 

I already do 30% twice a week,that's 60% water changes a week.

This is inside the eye,rest of the eye is fine.

 

not a cataract?

 

Might be (saw a post on Google where someone said that it was barely noticeable at first and then went out of control,same with me)

Can i use Melafix to treat it?,i don't have a hospital tank at this stage.