ok, I'm about 3 1/2 weeks into fishless cycling my 40 gallon and last night I was looking in the tank and saw what appeared to be tons of microscopic snails. The eggs must've hitchiked on the rock I took from my established 55 gallon..... has anyone ever had this problem? I am only adding ammonia daily, how are they living without food or do they live off of it? And shouldn't the ammonia be keeping them away or not letting them thrive? Ugh, I feel like a newbie all over.... 
