[trilinearmipmap]

OK here are a few thoughts.

I'd consider staying low tech if you want low maintenance. Between my high-tech tank and my low-tech tank, the high tech tank takes 10 times the effort and has more algae problems. The low tech tank is a 15 minute water change once a week, a good pruning every 6 weeks or so, and no algae period.

You don't need to spend $800.00 on discus, talk to Jason at Superior Aquaristik, you can get good discus for much less than that. However there are two drawbacks I have found to having a planted discus tank: discus eat snails which IMO are necessary for a plant tank, and discus produce a lot of waste which makes algae problems a little more difficult to deal with.

I'd think twice about a tall plant tank. First of all it is very hard to reach your arms in for maintenance, planting and pruning. Second the top leaves will shade the lower leaves, for a lot of stem plants this means leaves at the top and a spindly mess of stem and roots at the bottom, also any foreground plants will be shaded more by taller plants.

My low tech tank is onyx sand substrate, no CO2 injection, two 55-watt pc's and a 30 watt NO grow bulb over a 58-gallon tank, PMDD dosing 5 mL daily. This tank is in my office at work, I literally spend 30 seconds on it once a day feeding and fertilizing, and once a week a 50% water change. There are a few Amano shrimp, and schools of silver hatchetfish, cardinals and rummy nose tetras.

I like the onyx sand substrate especially with having very soft acid tap water, the onyx sand slowly dissolves and buffers the kH up to about 2 and the pH about 7.2, so there is no need to add alkalinity, calcium or magnesium like you normally would with soft acid water.

I would suggest this type of setup over a high-light tank if you want to enjoy your tank instead of working on it all the time.