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New Tanks

Set up your tank like a pro! Our Ultimate Refugium Starter Pack is the best way to get your new tank cycled + seeded. Build a sustainable marine ecosystem from Day 1 and watch your fish & coral thrive!

Size Guide

Recommended dosage & frequency of use of AlgaeBarn Products vary depending on the size and inhabitants of your tank. Click below to learn more about what you need for your tank to thrive!

Established Tanks

AlgaeBarn offers subscriptions on many of our products on a weekly, bi-weekly, monthly and bi-monthly basis. Get Copepods, Phytoplankton, Macro Algae & More shipped direct to your door - on your schedule!

Fresh Tank Tips

Our team is hard at work studying how marine ecosystems behave so that you can build your tank with the perfect components!
Click below to explore our content library and learn more about how to best use copepods, phytoplankton & macro algae in your system!
Common Saltwater Fish Diseases

Across all organisms on Earth, disease is a large factor in preventing the successful survival of creatures. Fish in the saltwater aquarium hobby are no exception to this. It is not rare to see a whole aquarium system devoured by a disease. You will often see fishes at the place you buy your fish infected …

Common Saltwater Fish Diseases Read More »

Captive Bred v.s. Wild Caught Green Mandarin Dragonets

They may look the same, but captive bred and wild-caught Green Mandarin Dragonets are different for many reasons. When it comes down to deciding which is better, the captive-bred kind is definitely it. Keep reading to find out why.   Diet The biggest difference between captive-bred Green Mandarin Dragonets and specimens that are collected from …

Captive Bred v.s. Wild Caught Green Mandarin Dragonets Read More »

Coral Beauty Angelfish

The angelfish species has some of the most elegant fish to exist. These fish, however, can be massive. For example, Queen angelfish can reach 17 inches, which is not something that is wanted in the average reef tank. The alternative to this is Dwarf angels. These are a smaller, less aggressive, and more manageable version …

Coral Beauty Angelfish Read More »


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