Strange spot on gourami

[Twood9615]

I noticed a spot on the head of my dwarf gourami today, Im not sure how long it's been there but I've never noticed it before. I'm not sure if it's just a mark from being nipped at or if it could be ich or something of the sort so if anybody recognizes it please let me know. I also have melafix that I could use if needed but would it be okay to use that on the whole tank or would I need to quarantine the fish? Please let me know.

 

[Twood9615]

Also I can't find any spots like this on any if the other fish in the tank and the top fin of the gourami is also missing a little bit so I'm thinking it had a fight with one of the tetra but I'm not too sure.

 

[fishfanatic26]

That looks like a sore to me. What tank mates are there.

 

[Twood9615]

4 lamp eye tetra, they can be nippy but they usually only bother each other I haven't seen them go after the gourami

 

[fishfanatic26]

Mabey he got burned on the heater or got scratched. I would treat with melafix.

 

[Twood9615]

Okay and that's possible because his favorite spot is in a plant next to the heater, ill start treating with melafix, do I need to quarantine him or will it be safe to just treat the whole tank?

 

[fishfanatic26]

I would just treat the whole tank.

 

[Twood9615]

Okay thanks for the help and Merry Christmas!