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.
22/5/2021
Test with 24-V LEDs
After a long time there's another demo. This time a 24-V LEDs test. The peak power goes up to 42 W.
24/1/2021
Four years
The bettas are together with other fish in the aquarium and no other fish touch them.
8/11/2020
New hose holders
The Sera hose holders started to crack. I decided to manufacture my own hose holders which perfectly fit onto the Juwel Trigon aquarium.
17/10/2020
Clock backup
The time of the unit and the switch status are maintained when the unit is not powered.
