When you have an employer group health plan and want to apply for Medicare, the work status of the policy holder (you or your spouse) affects whether or not you will be in a Coordination of Benefits period.
Copper is an excellent treatment for saltwater ich or marine velvet disease, but it can be toxic and stressful to fish. Of course, using it is much better than letting a fish die from velvet, but it should never be used in a tank with healthy fish. Improper nutrition is also a commonly overlooked stressor of fish.
4. Treat your fish for ich when the parasite is most vulnerable. Ich can only be killed when it is not attached to the fish which is when the fully matured parasite drops off of the fish's skin in order to replicate itself into more ich-infecting units. Anytime the parasite is attached to the fish, it is protected from chemicals and treatment is not effective.