What are you thinking for substrate for the plants?
CO2? pressurized or DIY?
Lighting - LED, T5, T5HO?
What plants are you thinking?
What else are you thinking of stocking with besided the pleco?
(What kind of pleco is it?)
Just a few things to keep in mind for a planted tank.
Personally, I love the Flourite Black Sand for my plants.
I dose flourish chemicals and starting to use some dry ferts to keep the plants healthy.
This is a great size tank to work with, hope you enjoy the tank.