I have a well established 60 gallon tank with 2 penguin 350s it doing very well and is almost a year old. I got a great deal on a used setup it's a tall 20 gallon with marineland c - 220 canister. I'm Trying to see how fast I can cycle it. I did a water change on my 60 and put the water I took out into the 20 and topped it of with tap water (I have well water that comes out of the tap with perfect numbers) I cleaned the c-220 and put new foam in it. Added an air stone and turned the heater up to almost 90. Then I cleaned all 4 filters from the 60 in the the 20 gallon tank. We'll see how long it takes to get stable. Any opinions?