Hi,

I have 1 black moor,
Tank is 7.5 weeks old this week, we bought the black moor on Sunday. For the last 2 days I’ve noticed him acting slightly off as in not swimming so much and upon further investigation, he’s developed a white / grey patching all over him. No spots, just larger patches from mouth to fin.
He is eating and does swim around but just not 100% himself.

Size of tank in Litre or Gallons, if you don't know the water capacity then the physical size of the tank L x W x H?
- 125L
What filter do you use?
Unsure of the brand as this came with the set up
How long has the tank been set up?
7 n half weeks
What water tests have you done and what are the readings pH, Ammonia, NitrIte, NitrAte,
Ammonia - 0
Nitrite - 0
Nitrate - unsure
Temp - 68.3

When was the last water change and how much did you change?
Yesterday, 10%

A list of all the inhabitants?
Just the one fish

When did you last add fish, plants, ornaments or other tank equipment?
Plants & ornamenrs When the tank was first set up / fish 4 days ago

Have you added any medication?
No, I had added aquarium salt a few days ago when the patches first came up

Photo added

Apologies for only seeing this message now, and many thanks for helpfully providing a comprehensive background.

I would treat for velvet/slime disease such as eSHa Exit or Waterlife Protozin.

Keep us posted.

Hey, thanks so much for getting back to me.
I went straight to the pet store upon seeing your message and they did not have your mentioned products but they did have API whitespot treatment .. I have given the first dose of this tonight and should hopefully see an improvement after the second dose. Hope we have a happy goldie back soon?

Fingers crossed for your black moor. Keep us posted.

Just to give an update, my sick black moor survived!!! She is thriving now and a really happy lil fish!! Thanks so much for your help previously!! Very lucky we caught it in time with your advice