About Corydoras Zone Aquatics

A little about me running this site

This site, the YouTube channel and all other Social Media presences are run by Kristian Adolfsson.

I live in southern-most Sweden and have been breeding and keeping aquarium fish on and off since I was a kid, so like 40 years. I am also a decent photographer and videographer.

I have been collecting fish twice in Uruguay and once along the Rio Negro in Brazil and bred a lot of fish around 2010.  It was mostly catfish and then especially Corydoras type catfish. I also ran the site corydoras.net and the web shop Scandinavian Aquatics. I took a break from fish for a long time but have in 2020 started up the breeding room again.

Up until now I have bred around 70 species of Corydoras, Brochis, Aspidoras, and Scleromystax. You can see a complete list here: Bred Corydoras type Catfish so far.

I  also bred several other fish such as twig catfish (Farlowella, Sturisoma, and Sturisomatichthys), some Loricarids (like Ancistrus, Rineloricaria, and Hypancistrus) but also Tetras, Killies, Livebearers, lots of Cichlids and some Rainbowfishes.

Aquarium & Fish Associations

Kristian is or have been a member of the following Fish, Plant, and Aquarium Associations and Clubs:

Aquarium Magazines

I have been subscribing to or buying the following magazines:


I am the author of the article "Dry and Rainy Seasons in the Tank" written back in 2001 and it has been translated into around 15 languages. You can see some of them here on an old forum post and listing on Plecoplanet.com.

I am currently working on a new and updated version of this article.

The original article can be found again here on this site Dry and Rainy Seasons in the Tank.


I have also given talks in mainly Sweden about fish, breeding, and my travels around the world.

Collecting fish abroad

I have been collecting fish in Uruguay in December 1997 and November 2000 together with Felipe 'Pipo' Cantera. I collected, among other things, some Corydoras paleatus (or was it longipinnis?) in Uruguay. One of the fish I brought back was still alive after 12 years!

I also collected in Brazil (along Rio Negro) in 2004 but due to change in regulations for exporting fish we couldn't get any fish with us! Images from that trip is coming.

Social Media Presence

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