Black Spot

[Loganfish]

Hello! I recently collected some Darters and Stonerollers and they seemed to have black spot. I didn’t see this when I caught them but in the tank it’s visible. How to get rid of it? Saltwater Baths, Raising Temp, etc? I’ve been dosing the tank with melafix the past week. I moved as much Darters as I could catch into a separate 10. I did a salt bath on the Darters but unfortunately killed half of them and not any Black Spot at all.

 

[kno4te]

I’ve not known any treatment for black spot disease atleast from what I remember.

Black spot disease

Got a new fish in the other day and noticed that one of them has black spots on him. That look and are the same size and appearance as ick spots. After some research online which there wasn't much available for this disease it seems it's pretty harmless and should go away as the parasites can't...

www.monsterfishkeepers.com

 

[duanes]

The black spot (a parasitic (although benign) flatowrm (tremmatoda)) that is encrusted and protected, and waits in the fishes skin, and is not released until the fish is eaten by a bird,
if the fish is not eaten, it can wait forever, and does no harm..
It is very common in streams with snail populations, which carry the trematodes.

 

[Loganfish]

The black spot (a parasitic (although benign) flatowrm (tremmatoda)) that is encrusted and protected, and waits in the fishes skin, and is not released until the fish is eaten by a bird,
if the fish is not eaten, it can wait forever, and does no harm..
It is very common in streams with snail populations, which carry the trematodes.

Besides looking hideous will it do anything?

 

[duanes]

It does not directly harm the fish.

 

[dmyersWv]

Will it infect other fish?

 

[duanes]

If there are snails infected with trematodes from the stream in the tank, those trematodes can lodge themselves ib the fishes skin., causing more blackspots.
The snails are part of the life cycle of the parasite.

Simplistically......
Feces get krapped out by the bird.
Eggs in the feces hatch and enter the snail.
Fish eat the snail
The fish is eaten by the bird, and the cycle starts over