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Welcome to Jarek's Underwater Life.

Interested in fishkeeping? Want to have an aquarium? Or just looking for something to read?

The objective of this site is demonstrating my experience with fishkeeping.

Don't know where to start? You can learn what to consider when you want to create your own aquarium.

Frequently out of home? You can learn how to automate your aquarium.

Bored by the on/off light? You can learn how easy it is to build your own energy efficient light that will imitate daylight from the sunrise to the sunset.



Layout change

/ Section: Diary / Pictures: 03/2023 / Comments: 0

The aquarium was overgrown. I decided to reorganize its layout.



PCB design and manufacture

/ Section: AquaSky / Pictures: 01/2023 / Comments: 1

Successfully finished the PCB designed and manufacture. Tested the board with a load of 340 W.



Angelfish fights

/ Section: Diary / Comments: 0

Two angelfish started to fight to each other. The fights were intensive so I had to isolate one of them.



Plants reduction

/ Section: Diary / Comments: 0

I relocated some of the plants and reduced some of them. 



Test with 24-V LEDs

/ Section: AquaSky / Comments: 0

After a long time there's another demo. This time a 24-V LEDs test. The peak power goes up to 42 W.




Date: 4/3/2023
Picture: 6
Folders: 0


Date: 5/5/2019
Picture: 5
Folders: 0


Date: 17/8/2019
Picture: 11
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Date: 20/10/2019
Picture: 5
Folders: 0