Originally Posted by 92ProTruck
I disagree with the above posters. Ich can attach to anything wet during part of its lifecycle. It cannot complete its life cycle without a fish but you can transfer ich to your tank if the corals came from a tank with ich. It is good practice to QT corals, rock, inverts, etc. IMO and as long as you have a QT it would suck to get ich from a coral that could have been QT'd. Now, the time frame necessary...you will get lots of opinions. The life cycle of ich is 2 weeks so for fish you should QT for at least 4 weeks in the event a new parasite starts its cycle at the end of the 1st two week period. For corals and other inverts I think you can go less than 4 weeks because the life cycle will be interupted without the fish host. You can get more specific by what stages the parasite is in or can be in on a coral and how long that stage lasts, but in general, IMO 2-3 weeks is good. I QT my corals in less than optimum lighting and have not had a problem but they are generally less light demanding corals. Depends on the corals as to how well yours will do with your lighting.
I fully and absolutely agree.
If you come over to the disease and treatment forums, Beth, Sepulatian, and myself were just helping someone who got a massive amount of ich in her tank. She had not added any fish in over a year and she quaranted all of her fish. She bought some corals, did not quarantine them, and the next morning, she woke up and her fish were covered.
They will be fine in less than perfect lighting for a few weeks. If worse comes to worse and you really are concered that they need more light, roam the internet and you can find pc lights for $30 and beloe that will give you a 24 inch fixture that has 65 watts of light.