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Android Apps > Arcade > PetFish with Crystal
PetFish with Crystal icon

PetFish with Crystal

by aboard · Arcade · Free
On Google Play since October 2022 · Data updated 2026-10-22

PetFish with Crystal is made and published by aboard. AppBrain is an independent app data site and isn't affiliated with aboard. The app name, icon, screenshots and description belong to aboard and are shown as published on Google Play.

AppBrain's verdict

Niche
Installs
3.1 thousand
Last updated
October 11, 2025
Ads
Contains ads
Size
112.3 MB

PetFish with Crystal is a niche app, with 3.1 thousand installs. It doesn't have enough ratings yet to judge what users think.

Official page on Google Play

User feedback

Ratings and reviews on Google Play

Comments on PetFish with Crystal for Android

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Store listing

By aboard, from Google Play

“Feed, raise, breed and trade your favorite fish with other users online.”

PetFish with Crystal Screenshot 1 of 4
PetFish with Crystal Screenshot 2 of 4
PetFish with Crystal Screenshot 3 of 4
PetFish with Crystal Screenshot 4 of 4
Screenshots by aboard, from the Google Play listing
Description by aboard Written by the developer, not by AppBrain. Click to read.
PetFish 1.0.19
There are more than 60,000 kinds of fish in shape and color combinations.
In the order of a, b, c, d, e (first letter), the price is high and it is difficult to grow.
Fish and decorations are limited to a maximum of 30.

* fish name

KDPT EBF HJT
K: Kind Fish type, uppercase (male) , lowercase (female)
D: DorsalFin shape
P: PectoralFin shape
T: TailFin shape

E: Eye color
B: Body color
F: Fin color

H: Head color (mutation) , - Body color
J: Jaw color (mutated) , - Fin color
T: Tail color (mutation) , - Fin color

If the KDPT is the same, it is a same kind of fish and more than 5 years old.
Can reproduce if male and female are together

* decoration
There are currently Air (Oxygen Supply) and Pollution (Pollution Filtration) as items that can be purchased at the Item Shop.
After purchase, drag to set the position and press the green fixing button on the left to fix it.
To move again, double-click the item to move it.
You can sell items in view mode.

* Gold
3000g is given at first, and 100g is given when watching the reward ad.
When logged in to Google Play, a bonus (0~20+fishcount)g is given every minute,
and you can obtain it by raising and selling fish or breeding them.

* Crystal
Double-clicking on the enemies (JellyFish, Snake, Starfish) that appear every minute gives you 1 crystal.
If you are raising a predator, you will receive 1 crystal with a 1/2 chance every time you eat an enemy.

* Disease management
Disease occurs when the o2 (oxygen) saturation is less than 10.
If the Pollution level is above 90, disease will occur.

when you get sick chance to die
a : 1/(age+6)
b : 1/(age+5)
c : 1/(age+4)
d : 1/(age+3)
e : 1/(age+2)

To avoid getting sick, install Air and Filter
O2 and Pollution must be properly managed.
Air and Filter decrease the value by 1 every 10 seconds.

If the water is polluted, you can use the Potion item to restore the water.

* Fish Growth
The fish bought in the store is 3 years old, and when fed, it can be up to 10 years old.
It grows and increases in size with age.

* Fish breeding
If the first letter is a capital letter, it is male and the tail fin is long.
Males are generated with a 1/10 probability from random fish in the product menu.
Pairs of 5 years or older with the same 4 letters have a chance of breeding every 10 minutes.

The fry are not saved in the game as they are 0 years old and are not saved until they are 1 year old.
You must eat periodically within 1 minute to avoid death.

A 10-year-old pair can give birth to up to six fry.
5 old(0~1), 6 old(0~2), 7 old(0~3)
8 old(0~4), 9 old(0-5), 10 old(0-6)

The fry have a 1/10 chance of having a head, jaw, and tail color.
Mutations can occur

* Enemy NPCs that appear every minute
1. JellyFishWhite - Periodically decreases oxygen
2. JellyFishBlue - Periodically increases pollution
3. JellyFishOrange - Periodically increases pollution and decreases oxygen
4. SnakeYellow - 1/10 chance of being bitten by a snake
5. SnakeRed - 1/5 chance of being bitten by a snake
6. Starfish - 1/10 chance of dying when bitten by a starfish

Double-clicking an enemy NPC will give you 1 Crystal.

* Predator NPC that eats enemy NPCs

- Octopus: Can be purchased from the shop and disappears after eating 10 jellyfish
(1/2 chance to receive +1 crystal each time it eats)

- Crocodile: Can be purchased from the shop and disappears after eating 10 snakes and starfish (1/2 chance to receive +1 crystal each time it eats)

- You can extend your life by purchasing a life potion from the shop.
- Double click to see the life count.

* Online Fish Trading and Exchange
If you create a room after accessing the Trading System,
You can set the price of a fish item and sell it.
The top user is the seller and the bottom user is the buyer.
You must set at least 1 Crystal for the trade button to work
If the transaction is successful, the selected fish item is exchanged and
Crystals are transferred to the seller.

Recent changes:
Enermy - JellyFish, Snake, Starfish
Predator - Octopus, Crocodile
Official page on Google Play

Safety and technology

Found in the app by AppBrain
Ads
Contains ads
Price
Free
Libraries
?
App size
112.3 MB
Content rating
Everyone

Technologies used by PetFish with Crystal

5 permissions
Subscribe to see full permission and library details

Releases

Updates seen on Google Play
Version
1.0
Launched
October 2022
  • Oct 11, 2025UpdateVersion 1.0
  • Sep 12, 2025UpdateVersion 1.0
  • Aug 10, 2024UpdateVersion 1.0
  • Aug 7, 2024UpdateVersion 1.0
  • Nov 18, 2022Installs1,000+ installs
Show all changes Show fewer

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Installs

Tracked by AppBrain
Last 30 days
2
Play install range
1+ thousand
Launched
October 2022

Installs over time

PetFish with Crystal has been installed 3.1 thousand times. Over the past 30 days, it has been installed 2 times.

Rankings

Google Play top charts

Google Play Rankings for PetFish with Crystal

This app is not ranked

About the app and developer

About PetFish with Crystal

PetFish with Crystal is an arcade app developed by aboard.

Install Statistics

PetFish with Crystal has been installed 3.1 thousand times. In the last 30 days, the app was installed 2 times.

User Ratings

The app has no ratings yet.

App Information

PetFish with Crystal is freely available from Google Play. The app size is 112.26 MB. The latest version available is 1.0. The last update was on October 11, 2025.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play since October 2022.

App Performance Report

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Developer information for aboard

aboard

opandor@gmail.com

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Frequently asked questions about PetFish with Crystal

Is PetFish with Crystal free?

Yes. PetFish with Crystal is free on Google Play.

Is PetFish with Crystal still available?

Yes. PetFish with Crystal is on Google Play, and the last update we saw was on October 11, 2025.

Does PetFish with Crystal contain ads?

Yes. Google Play lists PetFish with Crystal as containing ads.

How large is PetFish with Crystal?

PetFish with Crystal is 112.26 MB.

Is PetFish with Crystal suitable for children?

Google Play rates the content of PetFish with Crystal as suitable for everyone.

How many times has PetFish with Crystal been installed?

Google Play lists 1,000+ installs for PetFish with Crystal.

Who made PetFish with Crystal?

PetFish with Crystal was developed by aboard. It is listed in the arcade category on Google Play.

What are the best alternatives to PetFish with Crystal?

People looking at PetFish with Crystal also look at these arcade apps: RYUKIN, Aquarium Fish Identifier, Fish Identifier - Fishby, Betta Fish Wallpaper 4K, Bettarium - Betta Fish Tank.

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