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Tropical Edu International

Educational Platform for aquarists

  • Freshwater Aquarium
    • First aquarium
    • Fish nutrition
    • Water chemistry
    • Fish
    • Crustaceans
    • Water plants
    • Technical issues
    • Tips
  • Marine aquarium
    • First aquarium
    • Marine fish
    • Fish and corals nutrition
    • Technical issues
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Thursday, May 14, 2026

Category: Marine aquarium

Marine aquarium is a fantastic, yet demanding hobby which requires broad knowledge of chemistry, physics and biology. Our experts will explain even most complicated issues needed to begin a safe adventure with marine tank. Here you will find information on how to set up your first marine aquarium. You will learn how much rock you need and what type. You will understand different filtration systems and the role of beneficial bacteria in maintaining balance in the marine aquarium. We will also help you choose fish for your first aquarium. We will tell you how to feed and care for them and how to choose the right food. We will also explain how to care for corals and what to feed them with. We will teach you how to prepare water for your tank and how to dose trace elements.

Clownfish and anemone symbiosis – facts, myths, and curiosities
Marine aquarium Marine fish

Clownfish and anemone symbiosis – facts, myths, and curiosities

The symbiosis between clownfish and sea anemone is the most recognizable example of interspecies cooperation in coral reef ecosystems. It is also one of the most efficient and stable interspecies … Read More

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The best foods for herbivorous fish – a complete guide
First aquarium Fish nutrition Freshwater Aquarium Marine aquarium

The best foods for herbivorous fish – a complete guide

Feeding herbivorous fish in freshwater and marine aquariums is most often based on ready-made foods containing spirulina. This microalga has become the cornerstone of aquarium diets thanks to its unique … Read More

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Jewelled blenny (Salarias fasciatus) – an algae eater
Marine aquarium Marine fish

Jewelled blenny (Salarias fasciatus) – an algae eater

The jewelled blenny (Salarias fasciatus), a member of the extensive Blenniidae family, is often recommended as a starter species for marine aquariums. Despite its relatively unremarkable coloration, this quirky fish … Read More

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Apogons – Peaceful and Social Fish
Marine aquarium Marine fish

Apogons – Peaceful and Social Fish

Apogons, belonging to the family Apogonidae, are relatively easy fish to care for, making them a great choice for beginner aquarists. These social and steady fish tend to stick to … Read More

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Chromis – Shooling in the Aquarium
Marine aquarium Marine fish

Chromis – Shooling in the Aquarium

Chromis are popular schooling fish from the Pomacentridae family. In aquariums, the most commonly encountered species is Chromis viridis, also known as blue or blue-green chromis. This species is widely … Read More

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Pomacentrinae – small but feisty
Marine aquarium Marine fish

Pomacentrinae – small but feisty

Pomacentrinae fish refer to individuals in the subfamily Pomacentrinae and a group of species with a similar appearance. These small, vibrantly colored fish are ideal for smaller aquariums. However, they … Read More

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