Great repsonse. The point he made about the ich going dormant is a great one that everyone should pay close attention to.
Though I only battled ich once in my reef (thanks to Brandon otherwise I'm sure it would have been more), I once had a FW cichlid tank that was loaded with parasites. I tried all types of medicines. after a few weeks and a few fish dying, everything suddenly looked normal and I decided to add some new fish. Sure enough, more fish died including all the newly added ones. Once again, I dosed. everything looked normal after a few weeks. i added fish, things died. It was a vicious cycle. I was finally told that this was undoubtedly a parasitic infection and that parasytes often become "dormant" in tanks. Certain fish build up immunity to the parasite. However, when a new fish is added it does not have that immunity and so the parasite quickly attaches itself to the fish. At that point, the parasite becomes stronger and reproduces quicker and so the "immune" fish suddenly are affected as well because they were not "immune" to the stronger strand.
I was able to determine that the parasite came from some rocks I had. I removed all the rocks and replaced them with some new ones. I did an 80% WC and never had another fish die.
In SW tanks, when a new fish is placed in an aquarium and suddenly ich shows up ppl always assume that it was the new fish that brought it in. while that is usually the case, from what I understand it could just as well be a dormant strand of ich that was always in the tank.
This is why when a tank has ich I am in agreement with Brandon that we should do our best to get rid of it altogether in the tank. while that may be hard work, in the end it is well worth it. I took all my fish out for 2 mos, dipped them, placed them in hypo, raised the display tank temp to 82 and have never seen ich since. I have also QT'd all new fish.
Now I have to concede, I have a 30 gallon tank. If I had one of these monster tanks I don't know how I'd ever do that.
Gluck Mojo.
Though I only battled ich once in my reef (thanks to Brandon otherwise I'm sure it would have been more), I once had a FW cichlid tank that was loaded with parasites. I tried all types of medicines. after a few weeks and a few fish dying, everything suddenly looked normal and I decided to add some new fish. Sure enough, more fish died including all the newly added ones. Once again, I dosed. everything looked normal after a few weeks. i added fish, things died. It was a vicious cycle. I was finally told that this was undoubtedly a parasitic infection and that parasytes often become "dormant" in tanks. Certain fish build up immunity to the parasite. However, when a new fish is added it does not have that immunity and so the parasite quickly attaches itself to the fish. At that point, the parasite becomes stronger and reproduces quicker and so the "immune" fish suddenly are affected as well because they were not "immune" to the stronger strand.
I was able to determine that the parasite came from some rocks I had. I removed all the rocks and replaced them with some new ones. I did an 80% WC and never had another fish die.
In SW tanks, when a new fish is placed in an aquarium and suddenly ich shows up ppl always assume that it was the new fish that brought it in. while that is usually the case, from what I understand it could just as well be a dormant strand of ich that was always in the tank.
This is why when a tank has ich I am in agreement with Brandon that we should do our best to get rid of it altogether in the tank. while that may be hard work, in the end it is well worth it. I took all my fish out for 2 mos, dipped them, placed them in hypo, raised the display tank temp to 82 and have never seen ich since. I have also QT'd all new fish.
Now I have to concede, I have a 30 gallon tank. If I had one of these monster tanks I don't know how I'd ever do that.
Gluck Mojo.