Hi, This is the first post for me. all of the tanks that I have set up over the years has been from scratch using a fishless cycle. This is the first time I will be upgrading a 20 gallon to a 55 gallon and was wondering what I can expect in terms of water perameters during the time it will take for the 55 gallon to get established. My roommate is moving out of town and has given me the tank. Currently, the 20 gallon has 6 panda corys and 10 neon tetras. This tank has been running for almost 2 years. Water perameters (API Master): Ammonia 0, Nitrite 0, Nitrate 5 to 7.5 and PH 6.5. The water perameters have always been pretty stable. What can I expect the perameters to look like after I upgrade this tank to a 55 gallon? I should add that I have been running the new Emperor 400 filter on my established 55 gallon for the past 3 weeks and will be transferring this and the Penguin that is currently on the 20 gallon to the new 55 gallon. Also, all gravel and decorations as well.