caused by ick?

i've had ick in my tank for about a week now and only my bleeding heart tetras have it. the thing is, one of my buenos aires tetras fins are all ripped up and torn up and it's gills are inflamed and it looks like it's breathing real heavy. i have a few of them and this is the only one that is like this. could this be related to the ick? i've been treating with salt and raised temps for about a week.

i have a fully cycled 46 gallon tank, nitrite is 0, nitrate is 20.

thanks!

actually did some more research and it seems like my fish has fin rot. how should i treat this since i'm already treating for ick? would a water change be the best bet?