Is this anything to worry about

[williamplumb]

I don’t know if The dark spot on the fish flukes. He is swimming very quickly aswell don’t know if that has anything to do with this

 

[williamplumb]

H

 

[ReefEco]

If you suspect flukes, a short freshwater dip will turn them white, and they fall off. You can read up on it on the fish disease guru's site:

How To - Freshwater Dip

Freshwater Dip (updated 7-30-2023) What It Treats: Provides temporary relief of some parasites - Marine Velvet Disease, Brooklynella hostilis, Uronema marinum seem most susceptible to the osmotic shock. A FW dip can also be used to dislodge certain crustaceans and worms, such as Parasitic...

humble.fish

 

[williamplumb]

If you suspect flukes, a short freshwater dip will turn them white, and they fall off. You can read up on it on the fish disease guru's site:

How To - Freshwater Dip

Freshwater Dip (updated 7-30-2023) What It Treats: Provides temporary relief of some parasites - Marine Velvet Disease, Brooklynella hostilis, Uronema marinum seem most susceptible to the osmotic shock. A FW dip can also be used to dislodge certain crustaceans and worms, such as Parasitic...

humble.fish

Thanks did try that nothing fell of that I could see so I guess it’s just a mark or darker patch