Here is a guide for the seeded fish tank route I use in this video

We use the seed to determine the cart contents, the remixed bundles, the contents of trash cans, giant crop locations and when the fairy night event will happen.

Setup

Character: Doesn't matter

Pet: Cat

Farm Layout: Forest Farm

Skip intro

Remixed bundles

3 Multiplayer Cabins

Separate layout

Seed: 11375862

Spring

Whilst sleeping to Spring 5, zoom all the way in (this makes the fairy cutscene faster).

Spring 5 : Run outside whilst moving your bed closer to the door

Clear a bit of space as seen in the below screenshot

You will need to hoe and plant a cauliflower seed in the same spot as in the screenshot. I find the bit of dirt that is up and left of this spot is a useful reference. You will have to get lucky with getting the cauliflower seed from mixed seeds, sometimes it takes a few mixed seeds before you get a cauliflower. If you have spare mixed seeds after planting the cauliflower, plant them next to the cauliflower, this gives you a better chance that the fairy will arrive.

Once the cauli is planted, go to sleep. You need the fairy to arrive during this night, if it doesn't you will have to reset.

Once the fairy cutscene has finished, you can zoom back out again.

Now sleep until Spring 22

Spring 22 : You need Spring 22 to not rain, if it is raining you will have to reset.

Leave house and mash through the Marnie cutscene, say no to the cat.

Clear and till the 8 adjacent spots to the grown cauliflower. You then need to water the cauliflower. Make sure to not accidentally harvest it. The easiest way to water without harvesting is to stand your character next to it, then make sure your cursor is not over the cauliflower before you click to water it. Note the cursor location in the below screenshot

Now run to the bottom of the farm and clear a space to move the bottom cabin closer to the exit. See the screenshot

Now forage the left side of the farm, then head back to the top cabin, getting 50 wood on the way to make a chest.

Place the chest down by the mailbox, and deposit everything except the following:

• Axe
• Scythe
• Foragables to sell

Then read the mail to get the letter from Willy and leave to the Busstop. You can grab the leek in the busstop.

You now need to enter town at or after 8:00am to trigger the CC cutscene with the Mayor. If you are there early, you have to wait.

Enter the town at 8. skip the cutcene with 'f'. Then run to Jodie's trashcan to get the Eel from it. Then head to the beach.

Skip the cutscene, then begin fishing. Here you are trying to get the Sunfish and the Sardine

Hopefully your tutorial catch is a Sunfish as it is the quickest way to get it. There is an easy backup if it isn't. You can increase your chances of your first fish being the Sunfish by doing a short cast.

After catching the Sardine (and hopefully also the Sunfish ), head to Town and forage a Clam and an Oyster from the beach on the way.

If you didn't get the Sunfish on the beach, get it from the river in Town as you leave the Beach.

Enter Pierre's and sell the forage you got and buy 8 cauliflower seeds (if you planted extra mixed seeds and got extra cauliflowers, then reduce this by the number of extra cauliflowers you got)

Head to Robin's and select Construct Farm Buildings then click the Move buildings icon. Then move the bottom cabin to the spot you cleared at the bottom of the farm.

Leave Robin's and begin fishing in the Lake.

Here you must catch a Bullhead , a Carp , and a Largemouth Bass .

Once they've been caught, head into the CC and read the Junimo text. Then drop all the Fishtank fish next to the Fishtank bundle.

Head back to the farm and plant the cauliflower seeds in the spots you prepared earlier. Then sleep.

Spring 24 : Leave your house and read the mail until you see the Wizard letter.

If your money is low (below 850) you will need to forage the Busstop.

Harvest the giant cauliflower and sell it (+ busstop forage if you got it) to the shipping container.

Run down to the bottom cabin and sleep.

Spring 26 : Head to travelling cart and buy Catfish , Octopus , Tiger Trout , and Red Snapper .

Head to Wizard and skip the cutscene then sleep again in the bottom cabin

Spring 28 : Head to travelling cart and buy Scorpion Carp then head back to farm and sleep in top cabin

Summer 12 : Go to chest and put away Axe and Scythe

Head to Busstop and grab a Grape , Spiceberry , and a Sweet Pea . If your money is below 1150, grab the spares to sell.

Run to the Beach, pick up a Mussel then begin fishing. Here you need a Tilapia and a Tuna .

Once you've caught what you need, run to the CC. Turn in the Summer forage items into the Crafts room bundle, and pick up the Summer Seeds reward.

Run to the fishtank bundle, and turn in the items in your inventory and on the ground. You need to get the rewards for completing the Ocean fish bundle, and the Master Fisher's bundle.

Run to Pierre's and sell the Summer seeds, the Dish O' The Sea ( + spare summer forage if you needed it)

IMPORTANT Now run to the travelling cart and buy Shad and Lobster then sleep in the bottom cabin

Summer 14 : Use the beach warp totem, and grab the Cockle from the beach. Then head to the travelling cart and buy Sturgeon then sleep in the bottom cabin.

Summer 28 : Head to travelling cart and buy Walleye and Bream . Then head to the CC and complete the Fishing bundle.