I'm currently treating an outbreak of ich in my aquarium (thanks a lot crappy fish store I went to) that's spread from my new fish to my rams. I have upped the temp, replaced 25% of the water, removed carbon filter, and applied meds to cure Ich. How intense do I have to be with sterilization? I had to remove a dead fish right before the ich outbreak with a net. Should I put that in boiling water? What about the gravel cleaner? Do I have to sterilize that in boiling water as well. Can I use the same filter cartridge I removed that had the carbon (it was brand new! I only had it in for 3 days before the ich outbreak). I know, why put $50+ worth of fish in further jeopardy if ich comes back for a $3 filter cartridge. After all of the white spots go away, up to how many days should I continue to apply medication? I don't want a sudden renewal of the ich population.