When using Mardel coppersafe you should only be using other mardel medicine products. They are made to compliment each other. Coppersafe stays in the water 30 days and if your doing WC
's without readding the proper amount of coppersafe then that is why your ick isn't going away. Were it me, I'd do a WC
, add the proper amount of Copper safe, then wait till almost day 30 to do another big WC
, then redose your Coppersafe to be sure everything is dead and once again leave it without a WC
for 30 days. Feed lightly since you'll be putting off WC
's. Copper is the strongest parasite killer. And be sure you have no carbon in your filter (but check to see if Mardel recommends it's removal or not). I would also check Mardel's website to see if Melafix is able to be used with Coppersafe. Melafix is great for fin healing, it is the only product I use on my angels when their fins get torn up. Don't know if Maracyn or Maracyn 2 is for fin rot but if used properly with coppersafe your issues should clear up. If you heater only goes to 82 that is fine. It's just the higher the heat, up to 86, the faster the ick cycle goes. But with temps that high some fish become stressed just so you know to watch for that if you get a second heater. Hope this helps.