Because the FHSS systems are using much (or all) of the band, there are situations where they can be badly affected while a DSSS system is not affected at all. This can occur if the band is heavily congested except for a small portion and the DSSS system chooses that portion on which to operate.
Spotted seatrout (specks) in Louisiana seldom survive past age 5, tunas are old at age 12, and redfish may live about 40 years at the maximum. The oldest red snapper reported in the scientific literature is an individual sampled in February 1991.
Healthy goldfish live on average 15 to 20 years, while those kept in unhealthy conditions, even well-cared-for otherwise, live an average two to three years. A filter is necessary to maintain the type of water quality a goldfish needs to live a long and healthy life.