What is this on my lambchop rasbora?

[LHAquatics]

Is this fungus on the lambchop rasbora? is it contagious? What is wrong with my platy? The first picture is of the platy. The second pic a healthy fish for comparison? The third pic is of the sock fish swimming at that angle. The fourth pic is of the rasbora

 

[notamermaid]

What are your water parameters & maintenance routine?

 

[LHAquatics]

What are your water parameters & maintenance routine?

They are new. The rasboras. The water is blue because I just finished adding Ich X. I do 25% weekly water changes. The stocking so far is 2 harlequins, 2 lambchops (thought they were harelequins), 3 platies, and 3 albino corydoras. I feed them Fluval bug bites and omega sinking pellets. The tank is 29g with a 200b filer. 0 ammonia and nitrite, and the nitrate is about 5ppm.

 

[notamermaid]

More questions:
How many days have you had the rasboras?
Do you vacuum the gravel, if so how often?
What temperature is your tank?
I'm thinking it's columnaris not fungus.

 

[LHAquatics]

More questions:
How many days have you had the rasboras?
Do you vacuum the gravel, if so how often?
What temperature is your tank?
I'm thinking it's columnaris not fungus.

OOF, what should I do? Should I separate it?
Tempe: 80 I will lower it to 76
Before weekly, but now daily because I am treating Ich
About a week

 

[notamermaid]

If you have a quarantine tank & no other fish have symptoms then separate it, otherwise treat the whole tank. It is cheaper & easier to treat in a 5 or 10 gallon quarantine tank. If you haven't read it already you should read the columnaris article.
If you do end up separating it maybe treat all the new fish.


If all the other fish look good then separate the sick one (I find that buckets work well for a quarantine tank in a pinch) & treat both tanks with the salt treatment reccomended in the article. You can buy a big bag of pool salt at Home Depot or Lowe's for about 5 dollars, just make sure it dosen't have any additives like anti-caking agents & it's not kiln dried. You can do this with or without stopping the Ich-X as the salt will treat ich too.

Good luck.