Just reset the 55 gal. tank. Removed all the gravel and replaced it with 40lbs. of Eco-Complete, yes I know that you said it was inert but I had it on hand. Over that I put 3 ltrs. Tropica soil powder. Replanted with same plants that survived plus some new. Driftwood and lava rock, heavy in Christmas Moss. That stuff just grows everywhere, already have a 10 gal tank full and giving it away to Lfs along with java moss and java fern. Looking for information on water changes. Heard you can expect large ammonia spikes, hasn't happened yet going on 3 days. How often and how much, fish are in another tank? Will send pictures when I can. Also just had donated to me a very large tank, measures 36"x36"x144" made or what looks like 3/4 and 1" acrylic. Helped him find a home for a 36" alligator gar. Now in storage with my 250 gal. if I figured right it's about 900 gal.