I think I have just encountered the worst smell ever! No exageration!

I have a tub in the basment with about 150lbs. of live rock "cooking" in the basment. The rock came out of a neglected 12 year old tank. Rocks were full of algea.......and giant fire worms!

I will never put off the first water change on a liverock cooking for a week and a half again!!My whole house stinks like a sewer exploded. There must have been 100 giant rotting fireworms at the bottom of the bin, most 1/2" wide. No clue how long they could have been, being shriveled up.

Word to the wise- Change that water every 3 days (at least) for the first couple weeks of cooking. You have no idea how bad it smells in my house right now!