Welcome Home Soldier!!!! Great to have you back.
I have always found it difficult to start over again after a tank goes to seed, especially after all the work it took to get the landscaping just the way you want it. I commend you on your efforts.
If I get the energy, I'll post a picture or two of my two tanks... both of which have grown wild - intentionally. I discontinued the CO2, dose only when I feel like it, and I don't bother much about the quality of the lighting. Furthermore, instead of fighting algae, I have learned to appreciate it. However, I chose to use mainly different varieties of ferns and mosses, both of which require very little care.
I still do water changes and keep the pH, Alkalinity, and hardness steady; however, I almost never measure those parameters anymore. I just keep using the same formula to replace water due to evaporation, and another mix to replace water after a good water change. As long as the fish and shrimp look happy and keep reproducing, and the plants keep growing like the weeds they are, I see no need to change anything I am doing. -- It is a much more relaxing hobby for me now - the way it was when I was a kid... long before i ever heard about dosing or using CO2.
The 18 gal tank looks like something you might see in a clear bog or backwater... not picture pretty - but very "real" or "natural," I think. Building a natural looking, not obviously landscaped aquarium was always my intention. So I am happy with it.
The 3 gallon is sort of bare now as I just weeded out about 40 tons of Cladophora and took out most of the plants into which it had intertwined. But the few guppies and CRS that live there are quite happy.
Good to have you back, Fort...
Regards,
Larry