One of the things I find most perplexing in this hobby is telling someone to adjust their photo period when it comes to dealing with algae. This was the first thing I was told but during research I came to understand that light is only an issue in a few cases of algae and that algae is more like an equation, similar to that of the fire triangle. Heat+fuel+oxygen=fire. It's just that in this hobby the elements change from one aquarium to the next.
Because in many, if not most cases its a hobbyist wanting to go planted and getting a fixture that is way overkill. They have a light level that needs an extremely high tech dosing routine if it's even controllable at all. This is especially evident when people are dealing with t5 lighting and still referring to WPG as a method of measure.
So rather than try to figure out what to cut out, start with the light and everything else becomes way more manageable and less picky.
On the subject of dirt tanks, they are my favorite, although I definitely prefer the mineralized method over straight potting soil. I recently did my 125 with mineralized topsoil and oil dri, granted, there was a bit of effort involved, but total cost for a 2 1/2" deep substrate was < $10