A reef tank is based on its inverts, both micro and macro worms, snails,
crabs.

I also have a 55 gal fish tank so all the crabs-snails starfish ect
where put in that tank during the treatment. There is still alot of
green alge in the 125 gal tank so I dont think the snails and crabs
will starve not that there back home.

Various bacteria's also help to balance out the system. As for the
nitrobacter and nitrosomonas this medication will not interfer with
the biological filteratio

because now its very possible you are now the proud owner of DEAD
rock. I dont think its that bad.

There was no build up of ammonia or nitrite, and even if there was
alot of die off on the live rock I will toss it and just go buy some
premium marshel island. Do i need to replace some or all it or ?

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.

Yes, that true, I learned a new lesson. I'm still a newbee but
learning is fun and what most of this hobbie is about, i just which I
would have read about it not have it happen. Oh well......... Keep
trying Keep learning. Its all fun. BTW my 55 gal FO/no live rock
tank is going great. I have two ehiems and a hang on the back protein
skimmer this system is awesome, some time I think for a fish only
tank its better then a sump setup.

Steve