I received last Friday 60#'s of live rock from LR
.com. The tank had no fish... only 10# of live rock and some hermit crabs. The tank cycled for 2 months prior to receiving this shipment.
All seemed well.. there was lots of life... but now all is dying. Lots of worms are dying, brittle stars, crab, hermit crabs, pistol shrimp, etc. etc.
I did a 20% water change on Sunday.
I have been using purified water from the supermarket (by RO
and ionized) for top off and water change.
Amonia has spiked to over 1.0.
Is this to be expected or is something drastically wrong?