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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.
 

 

14/4/2019

New LED light

/ Section: Diary / Comments: 0

The LED light worked on the aquarium for two years. The light intensity weakened and the epoxy coating turned yellow. I decided to change the LEDs. For the new light I used the white LEDs with CRI 98 and RGB LEDs which I placed inside the profiles with diffusers.

 

23/3/2019

Changes

/ Section: Diary / Comments: 0

Changes in the aquarium to create rocks. Filter's output current redirection. Surprising NO3 values. Problem with an angelfish. Discovery of a quiet fans for the LED cooling.

 

16/2/2019

Aquarium Barcelona

/ Section: Diary / Comments: 0

Visit of Aquarium of Barcelona.

 

20/1/2019

Lethal CO2

/ Section: Diary / Comments: 0

In December the Seachem Flourish Excel finished and I didn’t observe any effect after its application.

 

2/12/2018

Two years and new plants

/ Section: Diary / Comments: 0

Recently, the cryptocoryne and vallisneria plants have grown well. I don’t know if it corresponds to small water changes every week or if I found correct dosage of fertilizer.

 

Aquarium