So as I mentioned a week or so ago, the 2 fish I had died. Instead of dropping in a shrimp as suggested here, I let the dead fish remain. 3 days later they disappeared! I noticed some of the sand had shifted and saw a thumbnail-sized crab that must have come w/the live rock. Not sure if the fish dissolved while I was away from home for a couple days or the crab got to it...(haven't seen the crab since that day).
In any case, I've tested the water regularly and have not seen any ammonia or nitrite readings. Nitrates are constant at 20. These have been the readings since right after I setup the tank and added the two fish two weeks ago.
The 20 lbs of live rock came from a tank at the lfs
and was out of water for no more than 30 mins. Any chance that my tank won't see an ammonia spike? Or should I add that shrimp now just to make sure?
There was some sort of invert life on the lr
(haven't had the time to figure out what it is--brownish w/a dozen or so "arms"). A few days ago, the arms seemed to be out stretched and would quickly pull in momentarily when I turned the lights on, but now they seem retracted all the time.
Thoughts on what I should do? Obviously don't want to add any fish until I'm sure its cycled.