"Rick" wrote in message
om...
Over the last couple of weeks I have treated my main tank with Mardel
due to a die off of a lot of fish due to an Ich and/or a stage 2
bacterial infection.


A reef tank is based on its inverts, both micro and macro worms, snails,
crabs. Many things we can't even see without magnification. Various
bacteria's also help to balance out the system. Mardel dosing in a hospital
tank is ok, but not in the main, because now its very possible you are now
the proud owner of DEAD rock.

As for the bristle worms: Most LFS people don't know the difference
between Hermodice Carunculata (Fire worm, very bad) and the various
Eurythoe Spp. (bristle worms, very good) So they put them into the same
Dangerous category.

Steve