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Setting up a marine aquarium is a delicate technical process that plays a crucial role in the long-term stability and viability of the entire ecosystem. Unlike freshwater fishkeeping, marine aquariums require particular care, as marine organisms are highly sensitive to even small changes in water parameters.

A successful marine aquarium setup relies on the gradual establishment of natural biological filtration through the nitrogen cycle. This process takes several weeks to become fully established and requires a precise, step-by-step approach.

With their vibrant colors, elegant body shape and active swimming behavior, surgeonfish are among the most iconic marine fish kept in reef aquariums. From the famous blue tang to the yellow tang, the Acanthuridae family includes numerous species with different characteristics and requirements.

Their popularity should not, however, overshadow their specific needs. Surgeonfish are generally active, require plenty of swimming space and can become territorial, particularly toward fish with a similar body shape. Their adult size must also be taken into account before they are introduced into an aquarium.

Which species are suitable? What aquarium size is required? What do surgeonfish eat, and which fish can they live with? The following sections cover the main points to consider when keeping surgeonfish in an aquarium under suitable conditions.

When starting a reef aquarium, choosing the first corals can seem complicated. Soft corals, LPS and SPS corals are three broad categories commonly used in the aquarium hobby to distinguish corals with different structures and requirements.

Some are relatively tolerant and make good choices for a first reef aquarium, while others require greater parameter stability, suitable lighting or stronger water flow.

What are the differences between soft corals, LPS and SPS corals? Which corals are suitable for beginners? Before selecting the first specimens, it is essential to understand their main requirements in order to choose corals suited to the aquarium and the aquarist's level of experience.

Setting up a reef aquarium involves recreating a tropical coral reef ecosystem in a controlled environment. Although technically demanding, this type of project is accessible to beginners provided that it is carefully planned: establishing a suitable budget, choosing the right equipment and selecting hardy species that are biologically compatible with one another. Here are the key points to consider when starting a marine aquarium.

With their distinctive colors, recognizable swimming style, and fascinating relationship with anemones, clownfish are among the most iconic marine fish. Highly popular in reef aquariums, they appeal to both beginners and more experienced marine aquarists.

Behind their familiar appearance, however, clownfish display particularly interesting behaviors. Pair bonding, social hierarchy, sex change, symbiosis with certain anemones, and reproduction are just some of the characteristics that make these fish so fascinating.

Among the different species, Amphiprion ocellaris is probably the best known and one of the most commonly kept clownfish in aquariums. But how do clownfish actually live? Do they need an anemone? How does a clownfish pair form? Can they breed in an aquarium? Here are the main characteristics and behaviors that make clownfish true icons of the marine aquarium hobby.

Getting started with a freshwater aquarium is an exciting experience, but choosing the first fish can quickly become complicated. Aquarium size, water parameters, the behaviour of different species and their specific requirements all need to be considered, as not every fish is suitable for a beginner aquarium.

For the best possible start, it is preferable to choose relatively hardy species with requirements that are manageable for beginner aquarists. However, this does not mean that they can live in just any conditions: even fish considered easy to care for need a properly cycled aquarium, suitable water conditions and regular maintenance.

Guppies, Platies, Zebra Danios, Corydoras aeneus and Bettas: here are 5 freshwater fish suitable for beginners and the key information to consider before adding them to an aquarium.