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What are L-number catfishes?

What are L-number catfishes?

It is not so dreadfully long ago that lori?cariid catfishes were regarded as the poor relations of the aquarium hobby, and were maintained and tolerated in the community aquarium solely on account of their often bizarre appearance and their useful characteristics.

Fish genetics

Fish genetics

Many of the most popular tropical aquarium fish kept today are more brightly colored than their wild relatives. Modern techniques have allowed the development of varieties to be taken to new extremes, with the first genetically modified fish now available.

The popularity of fishkeeping

The popularity of fishkeeping

Although there is some archaeological evidence of fish-keeping dating back to Babylonian and Egyptian times, it is unclear when people started keeping fish for their aesthetic qualities, rather than as a source of food, but the activity certainly dates back well over a thousand years.

Micronutrients for aquarium plants

Micronutrients for aquarium plants

These nutrients are required only in extremely small quantities and are often described as "trace elements." They play important roles in the biochemical processes that sustain life and are vital for good plant health.

News
  • 2017.07.22 - There is a new fish profile in the Loaches category.
  • 2017.07.16 - There is a new Aquatic plant proifle on the site.
  • 2017.07.08 - There is a new fish in the Loaches category.
  • 2017.07.01 - There is a new fish profile in Cyprinids category.
  • 2017.06.25 - There is a new fish profile in Loaches category.
  • 2017.06.17 - There is a new fish profile in the Cichlids category.
  • 2017.05.27 - There is a new brackish water fish profile on the site.
  • 2017.05.21 - A new crab profile is on the site.
  • 2017.04.22 - There is a new Rainbowfish profile on the site.
  • 2017.04.08 - There is a new Labyrinth fish on the site.
  • 2017.03.25 - There is a new Cichlid profile on the site.
  • 2017.03.04 - There is a new catfish profile on the site.
  • 2017.02.04 - New characin profile on the site.
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Onethird of freshwater fish species at risk from dam projects.

2016.03.26

One third of the world's freshwater fish species could be under threat if the go-ahead is given for hundreds of hydro-electric dams to be built in the Amazon, Congo and Mekong basins.

Researchers find the first warm blooded fish

2015.05.16

The opah, also called the moonfish, internally generates heat through constant flapping of wing-like pectoral fins

Oceanário de Lisboa presents 'Forests Underwater' by Takashi Amano

2015.03.28

Oceanário de Lisboa will open, on 22nd April of this year, the new temporary exhibition, 'Forests Underwater' by Takashi Amano.

Tropical freshwater fish
There was a time when the keeping and study of exotic fish was the preserve of serious researchers closeted in their laboratories; today, it is an established and popular hobby. Dealerships and specialized sales areas in large stores are springing up everywhere, paralleling an explosion in the number of public aquariums and books or magazines devoted to the subject. More and more people of all ages are falling under the spell, enjoying permanent access to a part of the natural world that was formerly beyond their reach. There are almost as many kinds of hobbyists as there are types of fish: the semiprofessional, the "small" and the "modest" collector, the specialist. There are the fanatics, who spend every minute of their time and energy on their aquariums, while for others fishkeeping is just a passing fad. Enthusiasts include the young - and the not so young; those with scientific knowledge or mere novices; those actively working and the retired. Such an immensely varied following guarantees that the world of the aquarist is full of interest and color.