I have been treating for Ich for 4 days now. The spots are on more fish and two of my swordtails are starting to swim strange, they are shimmering there hole body rather than using there fins to swim, also I have noticed some fin rot on the male swordtail. My treatment is 2tsp per gallon salt and raised temp to 86 degress. My Amonna and nitrites are 0, my nitrates are 15 and my ph is 7.8. Should start treating the finrot with melafix in conjuction with the salt treatment or wait?