i have a 30 gallon high that has been setup since october.........i have already had my ammonia, nitrite and nitrate go up and then down.......to 0 i have about 50 nass snails 9 nerite snails, 22 lbs fiji LR 3-4 inch sand bed. ammonia and nitrate have been at 0 since the cycle until i just recently added 4 turbo snails and 10 astrea snail 2 days ago.....i have just tested the levels now and i am showing an ammonia spike of 2.5 and nitrate of about 10.0........do you think this is just a mini cycle because i havent had much life in the tank since the cycle to keep up the bacteria pop....? i have been feeding the tank a few brine shrimp when i feed my other tanks........any thoughts?