Welcome!
It's all really up to you, but here's my say:
1) 36W PL lighting should be sufficient.
2) You can have a internal filter, but cannistors are better imho. Ehiem? I use a Atman 3335 for my 2ft.
3) Get Lapis sand, base fert use JBL Aquabasis Plus.
4) Get around 10cm of gravel, sloping down from back to the front.
5) There's no correct temp. Keep it under 28 degrees preferably, maximum 30 degrees.
6) Those bubbles are oxygen. The plants bubble when conditions are good for them and the water is saturated with gases. Plants photosynthesize readily once you provide the conditions necessary.
7) There's no correct bps count. Read up: http://www.csd.net/~cgadd/aqua/art_plant_co2chart.htm
8 ) Imho, they're better. I have 2 fans for my 2ft. Most have two or one.
P.S. vinz, you ought to change the code for thesmiley.
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