skinny loach - worms or bacterial disease?

[avee]

One of my 6 loaches has become skinny lately. He is less active then others and doesn't eat much. (all loaches are ca 7 cm long)

Two weeks ago some tiger barbs from the same tank had part of their tails missing and I suspected fin rot and treated them with antibacterial liquid.

Now I don't know if I should treat the skinny loach for internal parasites or bacterial disease?

What about the other loaches? Should I leave them untreated until some signs appear? They are fat and active at the moment!

[Diana]

Hi, Avee
What kind of Loaches do you have?
How long have you had them?

[ckk125]

it can be a combination of both..

I suggest that you treat for both..

[avee]

Hi, Avee
What kind of Loaches do you have?
How long have you had them?

I have clown loaches and I've had them for 2,5 months.