Looking for an easy to care for fish that doesn't require a heated aquarium? Of the coldwater fish available, the Zebra Danio is on the short list of fish I'd recommed.

Children love the 'racing stripes', and people of all ages find this active fish interesting to watch. To top it off, they get along well with other fish, and are undemanding about what they eat. You can't go wrong with a Zebra Danio.

Photo © Shirlie L Sharpe

Ammonia arguably kills more aquarium fish than any other single source. Almost every fish owner has or will be faced with the potential for ammonia poisoning, even if they don't realize it. Knowing how to detect it, and the steps to take to correct the problem, will allow you to avoid losing your fish.

If you haven't owned a Gourami, odds are some day you will. Their ease of care, compatibility with other fish, and attractive colors make them popular with fish owners.

Trying to decide which Gourami is the one for you? This photo gallery includes most of the Gourami species commonly seen for sale in the aquarium trade. Each photo includes an overview of the fish, and a link to an expanded profile.

Photo © Robert Gregory

Phosphates (PO4) are present in every aquarium, even though many aquarium owners aren't aware of it. If the aquarium is not properly maintained, the phosphate levels will rise and contribute to algae growth. Here is how to avoid phosphates, and reduce them if they get to high.