Can't finish cycle

[tyrfing]

Here are my specs: (as if these haven't been posted before)
75 gallon tank, up for 90+ days. 75 lbs live rock, about 90 lbs of live sand. Added things too quickly and had a die off. Hermit crabs and turbo snails are in the tank, have a couple feather dusters, a nice colt but no fish as of now AND a major 'pod bloom. Can't get the ammonia below .25, someone told me to stop H20 changes, turn off the skimmer and search the live rock for carcasses etc.
Stopped the skimmer about 10 days ago. Three days ago, I moved all my live rock in a search for food, dead bodies, etc. NOTHING. In fact, Hermits are eating each other and snails in an effort to get food.
When I pulled my arm out of my tank, it STUNK! like "dead" live rock. Looking upwards at the surface of the water from below, I noticed a film all across the H20 surface even though I have two powerheads breaking the surface tension.
Ammonia: .25
Aaaaaauuuuugggggggggggghhhhhhhhhhhhh! (to quote Charlie Brown)
Should I have left the skimmer off? Was this the middle of the cycle? The Ammonia never rose above .25 during the whole process. Even tried a new test kit, but it came out the same: .25. I've been posting on this subject for a while and I really appreciate everyone's help, I just can't get my tank to cycle.
Help!

 

[fshhub]

did yur ammonia or nitrite rise syet??, the smell sounds like curing rock, but if your trites or ammonia si going up, youmay be getting into the cycle now, it normaly takes a couple of days to a week for this process to start, but your tank is definitely odd, in 3 months, it should have spiked by now, but as mentioned before, it probably did not cycle as of yet, i can't remember, did you use MOed or uncured lr??
if so, that needs to be cured too, which will take much longer thatn noraml cycling

 

[tyrfing]

I (now) know that not all of the LR was cured. About 50 lbs of it came right out of a tank with fish in it and had some good white and purple algae on it. The ammonia has not gone above .25 and I have trace amounts of trates, but no trites yet.