Planted Aquarium...!
Well having a planted aquarium is a lot of fun, but at the same time is a lot of work and attention to detail. Let's see first you need to decide what type of plants you are wanting to equip your tank with, then you need to use a substrate which will absorb and maintain all the minerals and salts your plants will need. Such as laterite, flourite or a onyx substrate.
You will need to figure out the lighting requirements of the specimens you select, and then you have to find out what type of water chemistry these plants will need, becuase some specimens trive in brackish or alkeline water, (water with a ph higher than 7.0 which is water consired with a neutral ph). and then some need acidid or soft water, which is water with a ph of 6.9 or lower.
once you figure all of these parameters out, you will have to at least once a week or every two weeks, add a liquid iron fertilizer, some plants require a strong level of chelated iron to be present within the water column. and last but not least ensure the fish you will house with the plants have some similitaries with the water chemistry requirements of the plants, oh you will run into some problems.
Hopefully any of this advice was or is helpful, like my fellow comrades, I to have a lot more to learn.
Most sincerely Yours
Tiburon72