Fish and invertebrates can live in freshwater, saltwater, ponds, mud puddles and swamps. Find out how you can replicate these diverse environments in your own aquarium through equipment such as lighting, water conditions, decorations and filtration.
Man has destroyed a large amount of the fish population. Discover how you can help save this fragile environment.
Learn about compatibility of fish species or find out how to prevent and treat various fish diseases. Discover how to culture live food for your fish.
Find out why breeding fish is a satisfying and profitable hobby.
If you have any fish-related questions, please post in the discussion area and I’ll get back to you with an answer.
Full Fish blog
Saltwater Fish in Freshwater Lakes
In: Fish (general)
Fish formerly found in saltwater were forced to adapt to their new habitat. more...
In: Freshwater Fish
Guppies are prolific breeders and are able to live in a wide range of aquarium conditions. more...
In: Saltwater Fish
This latest discovery of the extinct fish Coelacanth may be a clue for scientists to look outside of a fish's last known habitat. more...
In: Freshwater Fish
Evolution has not affected the Lung Fish and their internal organs have not changed for millions of years. more...
In: Freshwater Fish
A backyard pond can provide the perfect setting for koi carp if you re-create their natural environment. more...
All feature articles in Fish
How to subscribe to article feeds
Full Fish blog
All contributors in Fish
The Betta Condition: Environment
In: Aquariums
By: Donald Lee
The Betta Condition: The Fish Bowl
In: Aquariums
By: Donald Lee
The Betta Condition: Temperature
In: Aquariums
By: Donald Lee
By: Heather Allan
Bryopsis: A Common Pest in Aquaria
In: Fish (general)
By: Heather Allan
All contributing articles in Fish
How to subscribe to article feeds
All discussions in Fish