Fluid Principles is the fourth challenge for Day 4 in Genshin Impact's Vibro-Crystal Research Event. Check out how to beat the Fluid Principles challenge, the best team comps, the best Vibro-Crystal Setup, how to get 2000 Points, all the enemies, and the total rewards here!

Vibro-Crystal Research Event Guide
Day 1	Day 2	Day 3
Day 4	Day 5	Day 6

How to Beat Fluid Principles

Day 4 Best F2P Team Composition

First Half Team - Fluid Principles
Kokomi	Kaeya	Rosaria	Sucrose
Second Half Team - Fluid Principles
Noelle	Xiangling	Kazuha	Barbara

Other Teams for the Trial Characters

Character	Who to Use with Character
Rosaria
Kaeya
Kazuha
Kokomi

The trial characters are free to use during the fourth challenge!

Day 4 Best Vibro-Crystal Setup

Best Vibro-Crystal Connections
First Half	Second Half

Same Vibro-Crystal Setup for Both Halves

The Bloodletting Curse will make it harder to keep your characters alive. It's best to setup the Vibro-Crystals with the first two transmitters connected to the Resurgent Receiver to have an additional HP. Then the third transmitter, connected to the Mighty Receiver, will increase all characters' ATK by 35%!

All Available Vibro-Crystals for Day 4

Transmitter Crystal	Vibro-Crystal Effect
Recovery Transmitter	Transmission will be triggered after a character regenerates HP, triggered once every 35s.
Damage Transmitter	Transmission will be triggered after a character loses HP, triggered once every 3s.
Skill Transmitter	Transmission will be triggered after active character uses an Elemental Skill, triggered once every 3s.
Receiver Crystal	Vibro-Crystal Effect
Resurgent Receiver	You gain a maximum of 1 Resurgent Receiver effect When you gain 1/2/3 stacks of this effect, your characters' Max HP is increased by 40/60/70% respectively, lasts for 20s.
Mighty Receiver	You gain a maximum of 1 Mighty Receiver effect When you gain 1/2/3 stacks of this effect, your characters' ATK is increased by 35/53.5/62.25% respectively, lasts for 20s.
Torrential Receiver	You gain a maximum of 1 Torrential Receiver effect When you gain 1/2/3 stacks of this effect, your characters' Hydro DMG Bonus is increased by 40/60/70% respectively, lasts for 20s.

How to Get 2000 Points on Day 4

Use Anemo to Gather Enemies

The majority of enemies can be interrupted and can be sucked in using Sucrose or Kazuha's Skill or Burst! With this, you can clear the first few waves with the weaker enemies, which will allow you to face stronger enemies that give you more points.

Bring Hydro Users and Healers for Both Halves

Due to the Bloodletting Curse, you need to bring a healer with you to keep your characters alive. You also need Hydro for enemies with Pyro Shields such as the Pyro Whopperflower, the Pyro Abyss Mage, and the Fatui Skirmisher (Pyro-Slinger Bracer)!

Other than Kokomi, Barbara is perfect for this, if you don't have her, or you haven't built her you can use characters like Xingqiu or Diona instead!

Target Nemesis and High Point Enemies

The Nemesis are the marked enemies on the list of enemies. Since they are counted differently from normal enemies, it's best to immediately target them as soon as they spawn on the field!

Higher Point enemies, on the other hand, have naturally high points on them, so taking note of them will make it easier to target them.

Take Note of the Transmitters

You receive the buffs from the Receiver Crystals however, they won't work if you don't trigger the conditions listed on the Transmitter which will result in lesser Harmonic Points! Carefully note how each transmitter is triggered and trigger them as much as possible in the challenge.

Vibro-Crystal Research Day 4 Enemies

Fluid Principles Domain Details

Day 4 First Half Enemies

First Half Enemies	Points
Marked Enemy: Pyro Abyss Mage	9
Marked Enemy: Pyro Whopperflower	15
Hilichurl Fighter	3
Hilichurl Grenadier	3
Large Pyro Slime	7
Pyro Hilichurl Shooter	2
Hilichurl Berserker	3
Cryo Hilichurl Grenadier	2
Cryo Hilichurl Shooter	2
Electro Samachurl	3

Day 4 Second Half Enemies

Second Half Enemies	Points
Marked Enemy: Fatui Pyro Agent	40
Marked Enemy: Fatui Skirmisher (Pyro-Slinger Bracer)	20
Treasure Hoarders - Marksman	5
Treasure Hoarders - Scout	5
Treasure Hoarders - Handyman	9
Treasure Hoarders - Gravedigger	9
Treasure Hoarders - Pugilist	9
Treasure Hoarders - Pyro Potioneer	6
Treasure Hoarders - Hydro Potioneer	6
Treasure Hoarders - Cryo Potioneer	6
Treasure Hoarders - Crusher	9

Vibro-Crystal Research Day 4 Rewards

Total Fluid Principles Rewards

Objective	Rewards
Obtain a stage score of 500	x70 x20000 x2
Obtain a stage score of 1000	x20000 x2 x5
Obtain a stage score of 2000	x20000 x3

Fluid Principles Information

Part of Vibro-Crystal Research

The "Fluid Principles" challenge is the fourth stage among six stages of the Vibro-Crystal Research Event. You can unlock this after you complete the third challenge, Stimulating Deduction!

Vibro-Crystal Research Event Guide

Genshin Impact Related Guides

All Vibro-Crystal Events

All Vibro-Crystal Event Runs

Vibro-Crystal Research Stage Guides

Stage Guide	Trial Characters / Nemesis Enemies
Elemental Presets
Diffracted Hypothesis
Stimulating Deduction
Fluid Principles
Stable Response
The Conversion Enigma

Event Unlock Quest

Vibro-Crystal Research Unlock Quest
Vibro-Crystal Projections

All Genshin Impact Events

List of Events