d)'The Big Green Bar'? You'll see the green bar going down, it's the 'oh shit! wrong item' bar. If you use something you wasn't supposed to use as bait you can cancel it by pressing 'Pause' before the green bar goes all the way to the bottom.

I mean this green bar, just to make this clear.

e) Ok, so the green bar went down and the bar on the left started moving! What now? The marker will go up and down really fast and the little piece of the green bar will also move vertically. To catch a fish you need to press [ SPACE BAR ] but it DOES matter where you do it. If you press space outside the 'little green bar' you'll get rohan cronefish from which you most likely will acquire something completely useless (Potions,Etc items) . now, you need to focus on stopping the marker in the 'little green bar'. That's the premium fish area. Premium fish can get you some really neat stuff (Rares,Pieces of Equipment with bonus stats and even better stuff, you just need to be a lucky bastard). By now you probably noticed the the 'big green bar bar' is going down. it's the time you have left before this fishing attempt ends.

NOTE: From what I noticed you CAN'T fail in fishing, you always get a fish no matter what.

f) So you finally got your first fish but what now . The fish have types going from RED to NO COLOR (not sure about this, need someone to confirm). The higher the type the better items you might get. The types go like this:

-lowest-

RED
WHITE
GREEN
YELLOW
NO COLOR

-highest-

Each type contain 7 (need confirmation on this) Ranks ex. Rank:0, Rank:1 etc. I believe that the higher the value the better items you can get rohan crone.

NOTE: The bait quality matters, if you're gonna fish with NPC items you'll mostly get low ranked fish but if you'll use some better equips(with bonus stats or rares) you'll have a much bigger probability of getting a high ranked fish.

It looks like this: