The Derby Dash

DORN

Bloody Perch - Festering Rotpool (Dorn) - Blood in Water (Hallow)
Pale Huskfish - Festering Rotpool (Dorn)
Cursed Ghoulfish - Festering Rotpool (Dorn) - Blood in Water (Hallow)
DillyDally Dace - Festering Rotpool (Dorn) - Calm Surface (Dorn,Deeps,Hallow)

Specular Rainbowfish - Glimmerpool (Dorn)
Spike Sea Raven - Glimmerpool (Dorn,Deeps) - Anglerseeker Torrent (Deeps) - Calm Surface (Dorn,Deeps,Hallow)
Crystalline Sturgeion - Glimmerpool (Dorn,Deeps,Hallow)
Bismuth Bitterling - Glimmerpool (Dorn,Deeps)
Goldengill Trout - Glimmerpool (Dorn,Deeps,Hallow)

Whispering Stargazer - Stargazer Swarm (Dorn)

Quiet River Bass - Calm Surface (Dorn,Deeps) - River Bass Pool (Deeps)
Nibbling Minnow - Calm Surface (Dorn,Deeps)
Dornish Pike - Calm Surface (Dorn,Deeps,Hallow)

DEEPS

Roaring Anglerseeker - Anglerseeker Torrent (Deeps)

HALLOW

Arathor Hammerfish - Blood In Water (Hallow)
Sanguine Dogfish - Blood In Water (Hallow)
Kaheti Slum Shark - Blood in Water (Hallow)

AZJ

Regal Dottyback - Royal Ripple (Azj)
Queen Lurefish - Royal Ripple (Azj)
Awoken Coelacanth - Fish in Azj after throwing 10 Stargazer fish

(Edit: I was not expecting this to get to the top, for a lot of these fish they have multiple pools that they can spawn in- I did not add them all on here, just where I personally fished up each fish. You can check the fishing guide for each fish to see every pool and location they drop from. Good luck fishing!

(Also I did the achievement with 220 Fishing, I would recommend higher for easier chance with Awoken Coelacanth but it is doable)

For anyone wondering, the progress is retained between weeks. You can only get progress while you have the buff though. Was four short the previous week (when I didn't knw about the achievement), then I finished it the next week.

[npc=226846] is the host of the Hallowfall Fishing Derby, so she will only be available on Saturdays while the event is active for 24 hours.
/way #2215 44.22 61.59 Captain OathmytShe's a trainer for [skill=2876], the [currency=3055] vendor, and gives the quests for the Hallowfall Fishing Derby that will reward 25x [currency=3055] when turned in.
[toggler name="Hallowfall Fishing Derby" closed=true]
Every Saturday, [npc=226846] offers players one of these five quests that will reward 25x [currency=3055] for completing and turning it in that day:

Hallowfall Fishing Derby
Hallowfall Fishing Derby
Hallowfall Fishing Derby
Hallowfall Fishing Derby
Hallowfall Fishing Derby

• 
  
• After accepting a quest, you'll be buffed with [spell=456024] for 60 minutes. You can not refresh that buff or get a new one that day on any character of your Warband, so you have exactly one hour to catch all the required Trophy Fish (and finish other things we can achieve while we have the buff).
• 
  
• You can pause in between, the buff timer will not continue when logged out. (keep in mind that with the start of Sunday, everything incl. the vendor/quest turn-in will be gone)
• 
  
• The Trophy Fish required to complete these quests are no special (or extremely rare) quest items. They are regular catches we see in Khaz Algar waters all the time, but to get credit for the quest, you have to catch them with [spell=456024] active!
• 
  
• This means, for the completion of a quest you should focus on getting the three required ones by fishing in the zones & pools mentioned in the following table or your Fishing Journal (when the character caught one of them before), but it's not urgent to turn in the quest, you have the full Saturday to do that.
  
  
  Fish

  Mouseover for Zone(s) and Pools

  Flagged Hidden QuestID

  Arathor Hammerfish

  [spell=444795]

  [quest=82928]

  Awoken Coelacanth

  [spell=444803]

  [quest=82936]

  Bismuth Bitterling

  [spell=444787]

  [quest=82920]

  Bloody Perch

  [spell=444785]

  [quest=82918]

  Crystalline Sturgeon

  [spell=444786]

  [quest=82919]

  [item=220152]

  [spell=444802]

  [quest=82935]

  Dilly-Dally Dace

  [spell=444792]

  [quest=82947]

  Dornish Pike

  [spell=444793]

  [quest=82926]

  Goldengill Trout

  [spell=444790]

  [quest=82923]

  Kaheti Slum Shark

  [spell=444797]

  [quest=82930]

  Nibbling Minnow

  [spell=444788]

  [quest=82921]

  Pale Huskfish

  [spell=444798]

  [quest=82931]

  Queen's Lurefish

  [spell=444801]

  [quest=82934]

  Quiet River Bass

  [spell=454443]

  [quest=82925]

  Regal Dottyback

  [spell=444796]

  [quest=82929]

  Roaring Anglerseeker

  [spell=444794]

  [quest=82927]

  Sanguine Dogfish

  [spell=444799]

  [quest=82932]

  Specular Rainbowfish

  [spell=444791]

  [quest=82924]

  Spiked Sea Raven

  [spell=444800]

  [quest=82933]

  Whispering Stargazer

  Whispering Stargazer

  [quest=82922]
  
  

[/toggler][toggler name="Fishing Derby Achievement" closed=false]

• 
  
• Tied to the Hallowfall Fishing Derby event, we have the The Derby Dash achievement with the [item=223286] reward... something you can use the remaining time of your [spell=456024] on when you got all the required Trophy Fish for your Fishing Derby quest.
• 
  
• Basically, you travel around and try to catch every fish once and turn in your Derby Quest (at least once) while the buff is active.
• 
  
• While most catches are straight forward, Awoken Coelacanth not only needs a very high Fishing skill, but also some preparation. Please read the comments there, it would only bloat this one more and they did a good job explaining it.
• 
  
• There's no guarantee that they will never change that, but right now, activities for this achievement don't have to happen in a single attempt on the same day. The progress will not reset, so you can continue with some missing fish on another Saturday.
• 
  

[/toggler][toggler name="Vendor & Currency Acquisition" closed=true]

• 
  
• One of the major reasons to do the Fishing Derby is to acquire the special [currency=3055] currency that is required to purchase items from [npc=226846].
  
  
  Item

  Cost
  ([currency=3055])

  Comments

  [item=228954]

  31 Silver 25 Copper

  [item=224717]

  500

  [item=224727]

  250

  [item=225763]

  50

  can also be fished directly

  [item=217375]

  100

  [item=226378]

  50

  [item=226376]

  50

  [item=226379]

  50

  [item=225771]

  10

  can also be fished directly

  [item=225770]

  10

  can also be fished directly

  Recipe: Ghoulfish Delight

  10

  [item=228421]

  10

  [item=225892]

  10

  [item=228423]

  10

  Hallowfall Harvester's Pitchfork

  50

  can also be fished directly

  [item=224752]

  5

  can also be fished directly
  
  
  
• 
  
• One week before Early Access, we finally saw a reward for the Fishing Derby quests, your character will now get 25x [currency=3055]. The quest will be shared to all character of your Warband, so you can only get this once per week.
• 
  
• For every unique fish caught with the [spell=456024] buff active, you will also receive 1x [currency=3055], so up to 20 per week.
• 
  
• While the actual currency [currency=3055] can only be acquired on Saturdays, [item=226392] can be fished in Khaz Algar waters all the time and then be turned into the currency. But don't use them immediately, keep in mind that you can put them into your Warband bank to use them on characters without the currency to unlock the currency transfer (e.g. for recipe purchases).

[/toggler][toggler name="Hints & Issues" closed=false]

• 
  
• Fishing Derby quests are shared between characters of your Warband, but that is not happening for [spell=456024]. This buff will only be applied to the first character accepting the quest. This is pointless because it is mandatory to get credit for Trophy Fish, loot currency on unique catches, and progress on the achievement.
• 
  
• During Beta and on the second weekend on Retail, some characters never got the [spell=456024] buff, which excluded them from the event. This seems to be fixed by now.
• 
  
• Originally, abandoning the Fishing Derby quest revealed a probably unintended way to use an army of alts to get more of the currency or ignore the 60-minute timer for the achievement. With the Derby Marks for unique catches being character-specific, you could accept the quest on one character, go for as many unique fishes to collect up to 20 Derby Marks. Then you abandonded the quest, switched to your next character, rinse, and repeat. This has been fixed, only your first character accepting the quest will get the buff!

[/toggler]