Sorry, I hadn't read the article yet, my bad  That's almost genius. So the questions I have now, before I start this.
You say it is good to use some of the filter media from the old filter. The 20 gal tank has a marineland/penguin brand on the back, the thing to transfer there would be the "biowheel"? If I don't use the same brand of filter on the new tank, would this still work, and how would I use the bio wheel to do this? (I am thinking of getting a canister or wet/dry type filter for the new 55 gal).
I had already thought of transferring the gravel, but what are the risks to the old tank and it's inhabitants while I am waiting for the new tank to cycle, if I transfer some of the gravel, and/or, how much is safe to transfer? I have about 1.5" of gravel in the 20 extra high. I don't want to put too much stress on the old tank while waiting.
And lastly, what filter would you recommend for a 55? I was thinking along the lines of a canister, a fluval or something similar. I could get one of the higher volume marineland back-mounted filters, they have always done well for me, but, I have never set up a 55 gal. Well, never without something that wasn't eating rodents or bugs
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