Hello,I haven't been on here in a while. To be honest, you are going about the wrong route on this one.
It is best when scaping a tank to plan and get all the material and plant first. Filter---Canister eheim is a excellent choice for filter but 2211 is not for a 30 gal. You want good circulation. I would recommend minimum 2213. 2215 is better for this tank.

Lighting---Need more lighting. T5HO, compact florescent, metal halide(150W) More light give you flexibility to grow almost anything you want.
CO2---since you are planning pressurize---excellent choice
CO2 reactor looks okSetting a tank with aquasoil and no plant = high chance of Algae(unless you want to be an algae farmer)

these are just my thoughts. Discovering the green side!
Here's a good link since you have choosing to right soil for your planted tank. Great information for noob and expertise alike!
Cheers and have fun!

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