I bought a corner tank that is 54gal with live sand and 60 lbs of live rock it has one full grown convict blenny around 14" long in it . I kept all the water . I moved it about 40 miles I set it back up and I had an ammonia spike to about 1 it went down to 0 in a bout 1 day. I waited 1 week then added a small puffer and a sally litfoot and 2 brittle stars the ammonia has gone back up to 1 again I thought once the tank had cycled the ammonia would remain at 0 how high can the ammonia go before I lose my fish I don't want to lose any of these guys . The blenny was in it when I got it.