Id call those fish mighty prepped, that's ten times the avg prep
wanted to show you something, knowing your updates. for musings and for similarities
can you ignore the eight pages of flame here as we vied for causatives but check out his presentation reason, same as yours
all he did was cast a handful of old sand once, into his new tank, doing fine just before, and all his fish died
fine before handful old sand
all dead after. simple as that
what you are cleaning out of live rock is indeed found compacted in layers in old tank sand, no?
Recently had a huge leak in our 90 gal reef which forced us to upgrade sooner than expected . The upgrade being a 230 gal with a 48 gal sump . Mistake #1 I added some of the old sand assuming it would be beneficial to have a little bacteria .. I was wrong . Nuked the whole tank killing all fish...
www.reef2reef.com
your assessment seems very linked to that loss as well. good call
even though these losses are devastating the patterns alone help the hobby, in prevention. in our whole sand rinse/replacement thread the #1 rule above all is cast about no waste. your assessment sounds spot on. for eight pages the refs simply would not have it: cannot be the casted sand.
but we think varying states of bacterial rot can matter, can irritate and kill.
*they did sway me originally from thinking it was nh3 raw ammonia though. the little he could transmit in that handful would be quickly eaten up per my own prior proofing.
has to be something more concentrated in the detritus than basic ammonia. your thread is really good.