Personally high tech is the way to go, if you have problems all you have to do is adjust something and for me it was always either the light height or the co2. All I had to do was research things here and I was set when I got my stuff it was as easy as dialing the co2 in right, dosing correctly and figuring how high my light needed to be.
Low tech is a bit harder as I've found out. When things like algae hit its not as easy to get rid of because your doing hardly anything to begin with so what is there to change?
Light drives everything low tech,or high tech.
In low tech,,CO2 is limited to that produced in the tank by bacterial process, and fish respiration.If you,or fish provide all nutrient's, then lighting is all that's left to adjust for the CO2 isn't really adjustable.
If you don't try and use too much light,, add lot's of plant's,,then plant's can grow (albeit slowly) and algae has a way more difficult time.