Introducing New Fish

[domdry]

Hi to all,

I have a 80 Litre tank that i recently introduced a male dwarf Gourami, He was hastled at first by a 3 spot Gourami for a day or two
and then just hid, then i noticed him on his side( looking dead) a week later. I pulled him out and into a temp quarantine tank( using water from the main tank and added filter +heater and air pump) Basically he don't look good. He has a whitish mark above his mouth which i'm treating him for with a general funghi medicine.

This has happened before when introducing new fish to this tank, the other fish all look healthy and my water is in good condition.
Could I have some undelying disease in my tank in the plants or that the other fish have got used to and How do i find out??

stuck please help what should i do ???

regrads
D

 

[dstev]

Hi to all,

I have a 80 Litre tank that i recently introduced a male dwarf Gourami, He was hastled at first by a 3 spot Gourami for a day or two
and then just hid, then i noticed him on his side( looking dead) a week later. I pulled him out and into a temp quarantine tank( using water from the main tank and added filter +heater and air pump) Basically he don't look good. He has a whitish mark above his mouth which i'm treating him for with a general funghi medicine.

This has happened before when introducing new fish to this tank, the other fish all look healthy and my water is in good condition.
Could I have some undelying disease in my tank in the plants or that the other fish have got used to and How do i find out??

stuck please help what should i do ???

regrads
D

It may be as simple as this fish was hassled to death as soon as it was introduced into the tank. Dwarf Gourami's are extremely susceptible to illness and disease. I has a pair of males that died even though there was no apparent disease in my tank.

 

[Assaye]

Dwarf gouramis are particulary prone to certain bacterial infections and stress related diseases.

The fact that he has had a major environment change and has been bullied in your tank, combined with the white fluff above his mouth, implies columnaris to me. This is actually a bacterial infection that tends to be brought out by stress. It can be very nasty and will require correct diagnosis and treatment. Can you get a photo?

Is it because of things like this that we say to always isolate new fish for several weeks before adding them to your main tank.