shaking fins, loss of apetite and two slightly bloated

[dpetit]

well over the last few days things have gone downhill. all the fish are starting to shake their fins, all are not eating as much. and two of them are starting to get bloated stomachs. i have access to a few meds. but i can not source out levamisole. any ideas
parameters
nitrate levels are non readable
PH is 6.8
temp is 84
BTW this is a planted tank without Co2
really need some help
dennis

[Pauluk]

Are you in Autralia?

[dpetit]

nope central canada so no where near australia haha

[Merrilyn]

Dennis, I think it's time to begin using and antibiotic.

If water changes and salt have not had any effect, and the fish are going downhill, then time to begin a course of antibiotics. You can try tetracycline or metro, although tetracycline will kill off your bio filter, so it's best to treat them in a bare tank.

Adding medication to the water will help, but if you can manage to get them to eat some food soaked in the meds then it will do a lot more good.

Some photos would help.