Fish On Its "last Legs"

[mikster]

lost two tetras today to the dreaded whitespot, im treating them as described on this forum, temp up and use whitespot meds etc.

My problem is tonight one of my other tetras has stopped swimming, just laying on the bottom. Its still breathing well tho but hasnt swam for quite a while, should i kill this fish humanely?

 

[mikster]

Well its too late now any ways, its passed away, i cant get any luck at the moment.

 

[WILDER]

Sounds like the tetra are not coping with the full dose of the med, do you have any other tetra's left if so i would do a water change and dilute the med down.
R.I.P.