I have an 11 gal heavily planted tank with amazonia and an Eheim 2211 filter. It's been up for 4 months. Only plants for first month. The amazonia seems to be really compact in a layer. There are circular shaped pieces of substrate on top layerand sort of squished pieces below the compact layer. Approximate 1 inch deep in front and 4 inches in back. It started out very dark brown ( was the black) and now looks grayish brown. The dwarf checkered loaches stir it up constantly so there is daily a layer of dust on the plants. If I have to replant a single stem of cabomba it is cloudy again also. Cloudiness is disturbing. Tap water is very alkaline so I adjust to ph 6.8-7 to add to tank which I try and keep at that range also. I have to add acid buffer daily to keep the ph down. Fertilize with all of seachems ferts regularly. Perform 1/3 water changes every week. Use excel daily. Purigen also in filter. Fish are Pygmy corys, dwarf honey gouramies, Gertrude blue eyes, hillstream loaches and checkered loaches. How can I resolve this dusty soil with compaction issue?