I have a male sword tail that I got from the pet store on may,20,16 and it is displaying signs of fin rot. his lips though are white and it looks like they also have some sort of fungus on them. any suggestions on what I should do?
Always be careful about getting your fish from Farmland. They are getting better with taking care of their fish, but some just have diseases and succumb to the disease. Always take a good look at the fish and try to pick out healthy ones.
Can you give us the water parameters of the tank. If another fish is developing fin rot there might be more going on then where the fish were purchased.
A 75% water change may be a bit drastic. You might try 40% a couple times a week until it's cleared up. There is also meds for the bacterial infections that may need to be dosed.
Before taking anyone's advice, let's figure out tank parameters water change cycle and food.