Should I medicate all of the aquarium Inhabitants ?

[pitdogg2]

i just read that Aquarium salt is a Big No No with Scaleless fish . Which would be my BN pleco and Corys . hmm my only two options would be to Crank my aquarium up to 92f to kill it, or use half dose of Melachite green to see if the fish are okay with it .

id go 86 and waterchanges no malachite no salt just waterchanges and heat. on another note ive dosed salt with plecos/corydoras plenty of times with no ill regards.

these are not smooth skin fish like channel catfish. they have plates which are large scales. I have used large salt doses on both with never a problem

Iodine can have bad effects on the bio filter, Iodide on the other have is safe as it is used with African cichlids and salt water fish.

[brewmaster15]

Jon,
The one with the spot thats isolated itself looks like the margins of its tail are eroding away..

Could you post some more current pictures? Im in interested in the sick one...but also everyone else. At this point I would not take anyone out. If its a protozoan..they all have it by now.
al