Algae itself is a natural phenomenon. Wherever there is light and water there is algae, and algae has been on Earth for a billion years.

“Swimbladder,” is a common ailment in aquarium and pond fish, especially fancy goldfish. The swimbladder is an air-filled organ inside the fish.

It is said that although some corals survive without light, no corals can survive without flow. Water flow brings corals their food and washes away their waste.

Brown algae can be a plague that ruins the look of a reef tank and can cause the owner to pull their hair out, and is most common in young reef tanks.

Hardy fish are often recommended to new fishkeepers as they are tolerant of small mistakes here and there and are easy to keep.

External canister filters are the filter of choice for aquariums over three feet in length and combine mechanical, biological, and chemical filtration.

Flatworms can be a pest in reef aquaria and if left alone they can multiply and reach plague proportions. Here’s how to control them.

Setting up your first tropical aquarium is an exciting introduction to the fishkeeping hobby. Bright, active fish are fascinating to watch, but choosing the right fish at the start is the key to success. In this guide, we’ll walk you through how to choose the best tropical fish for your setup, explain stocking for different zones, and suggest some hardy, beginner-friendly fish that thrive in home aquariums.

Choosing marine fish can be a minefield, with most of the desirable ones like puffers and butterflyfish being unsuitable for reef tanks.