Wow, I didn't expect so much feedback so quickly. Which made me realise I wasn't clear enough as well to cause some people to worry, sorry about that.
Ok, yes, I have already removed all livestock from the tank and placed them into another planted tank.
I plan on stripping it down and rescaping entirely.
I'm not going to have stem plants in the tank as an end result of this rescape, although, I will have a bunch in there for the start to help control algae but then later removed when the tank is past its vulnerable stage.
My Tank is 20G Bow front, rougly 60x35x30. It was simply a tank I re-used after my sister had left it dry for 2-3 years. I used to to gain all my knowledge and understanding of planted aquariums, all my trial and errors have been through the use of this tank.
The substrate is roughly 1-2 inches thick on the front and +1 more or so on the back. I'm going for an Iwagumi style simply because its one of the few styles I have yet to try and have admired.
Yes I have watched around 300 of T. Amano's planted aquarium videos, including the 3 large tanks that he created. I will be re-using the AS inside the aquarium, just adding on top of what's there with another 3 litre bag really however, I, would like the option of having ''steep'' slopes. Its not 100% needed, just, something I may want.
One thought I had was to use styrofoam boards, simply using aquarium silicone on bits of one side and have it plastered to the bare bottom of the tank to give it some depth. Another idea was to use the previously used silica sand that I had washed out til my hands bled dust just so it made no dust clouds in the tank; placed in bags on the bottom.
Again, thank you for so many replies, really didnt expect it within one night!