News and Blogs

Learn how to properly cycle an aquarium filter before adding fish — a quick, step-by-step trust-builder for healthy tanks in just 2 minutes. This video covers fishless cycling, establishing beneficial bacteria, monitoring ammonia.

While leaves in your local forest are unlikely to have come into contact with any herbicides or weed killers, leaves collected in your local park or gardens may well have done. Herbicides can be acutely toxic to aquarium fish, which will exhibit signs of poisoning within minutes.

Master the nitrogen cycle to keep your tropical fish healthy. Learn how ammonia, nitrites and nitrates affect your aquarium ecosystem.

To resolve aquarium condensation, use a proper, snug-fitting lid to trap moisture, improve ventilation by slightly elevating the lid or using aquarium lid clips, reduce evaporation by lowering tank temperature or increasing room temperature, and manage room humidity with a dehumidifier or by opening a window.

New to fishkeeping? Discover the top 10 tropical fish perfect for beginners—easy to care for, hardy, and full of personality.

This time around we asked AI to "show me an aquarium for fish designed from the perspective of a fish" and this is what we got. You can visit the whole collection of our Fantasy Fish AI fish images and other articles by clicking here.

Tropical fish are captivating companions that add a touch of serenity and color to any space. Check out this video to find out why they make the perfect pet!

Do you have tropical fish already, or are you considering getting some? Browse our range of aquarium and fish tank supplies via the category links above!

When placed in the aquarium, the holiday block gradually dissolves, releasing food particles (typically small pellets) into the water over a set period, typically ranging from a few days to a couple of weeks. If you're planning to use a holiday block or an automated feeder it's a good idea to test it in advance to ensure it suits your aquarium's needs.

The longfin zebra danio is a captive-bred aquarium fish and has long, flowing fins and a long tail, about three times the length of the common zebra danio’s fins and tail. In the aquarium industry, zebra danios are found in a range of colors, with silvery-green, pink, blue, and purple bodies.

Herein are listed the top 5 best aquarium external filters for 2025, based on Real Aquatics 2024 sales and reliability data from Real Aquatics outlets on eBay, Amazon and official websites.

The list consists of both external and hang-on filters only, and does not include variations such as internal filters and sponge filters - these are featured in separate awards.