Cherry Barb Single White Patch

[graemespence1]

Hello I have a medical related query.
I have 5 cherry barbs along with5 neon tetras, bretta, and a suckermoyuth catfish.
3 out of my cherry barbs have white seems to be a small white patch on there side i have being checmking them over and it has not got worse or bigger and yesterday placed them in isolation in a small 28 litre tank.
They are wimming fine and dont appear to be sick but a friend of mine told me it's white spot and i may need to kill the fish as it's untreatable. Thankfully i checked the web and found white spot is treatable lol. The main issue is that all the sites I read up on say white spots main sympton is loads of small pin head size spots and not a single white patch which the barbs have.
Is it white spot and if not what could it be I would have taken a picture with my camera but the fish never stay still long enough for me camera to focus and take the picture.
My ammonia is 0 in both tanks test taken with the liquid api test kits and my N02 and N03 are also zero as well.

 

[Ruskull]

How long has the tank been established? "0" for nitrates seems a bit odd. What size tank are we talking about here?

I have Cherry Barbs myself, 3 males & 2 females. Originally I had 3 of each but one female died from Ich, which is also known as white spot disease. The white spot disease that I have appears as patches of white cloudiness because the white spots are so small. My barbs chill out at the bottom "flicking" like tetras do. It wouldn't be that hard to take a picture since they stay in one place long enough, but it might be hard with a crappy camera like a phone camera. Try to borrow a decent one from someone & just take a lot until one of them gets lucky.

If you have another tank you should take the infected ones out in case what they have is contagious. Ich should be treated in the tank because the whole tank is infected to some degree already, even if all the fish don't show signs yet. That is, if it is Ich we're talking about here.

 

[graemespence1]

How long has the tank been established? "0" for nitrates seems a bit odd. What size tank are we talking about here?

I have Cherry Barbs myself, 3 males & 2 females. Originally I had 3 of each but one female died from Ich, which is also known as white spot disease. The white spot disease that I have appears as patches of white cloudiness because the white spots are so small. My barbs chill out at the bottom "flicking" like tetras do. It wouldn't be that hard to take a picture since they stay in one place long enough, but it might be hard with a crappy camera like a phone camera. Try to borrow a decent one from someone & just take a lot until one of them gets lucky.

If you have another tank you should take the infected ones out in case what they have is contagious. Ich should be treated in the tank because the whole tank is infected to some degree already, even if all the fish don't show signs yet. That is, if it is Ich we're talking about here.

Sorry for lack of info I am using a aqua one aquastyle 620 tank which is 90 litres I have had the tank for a month but I had a small 30 litre tank and over the last week I have slowly moved the tank water to the 90 litre tank and over the same time moved my fish from the small tanbk into the new tank I was also given mature filter sponge media by a friend who has the same tank. My barbs tend to swim around a lot during the day but i'll try and take a picture on the night using me fiances camera (time to buy a camera now) i'll retest the levels when i get back toinight from work.