Fishkeeping Answers

Need fishkeeping advice? We have a team of top aquatic experts on hand to answer your questions. Email us at and we'll pass your question on to the most relevant expert. Remember to include as much information as you can about your set-up and a photo could be useful too. There are even prizes for the Tropical, Marine, Plant and Coldwater/Pond letters of the month!

Is there really such a thing as a freshwater seahorse?

Practical Fishkeeping •

Freshwater seahorse — real or just a myth? Heiko Bleher explains...

What's the best substrate for Corydoras?

Practical Fishkeeping •

Corydoras like to root around in the substrate for food. So what should we use in the aquarium to allow them to behave…