I ordered 40lbs of "fully cured" live rock from ***************.com last monday. They said 2 day air would be fine. It arrived on wednesday and I put into my cured 75 gallon tank. It had alot of growth(sponge?) on it. From that night until this morning my ammonia has been at 1.0 and has not budged. 0 on nitrates and 0 on nitrites. I have a protein skimmer, hang-on filter, and 2 maxi-jet 1200 going. This afternoon I took the rock out, scrubbed it with a brush in clean water, cleaned the sand by running it through a net and did a 25% water change. Tonight ammonia still is at 1.0. Can anyone tell me how long it will last, how to quicken it, etc. (suggest anything)?