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Ultimate Refugium Starter Pack

What do I need for my Tank?

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!
The Nitrogen Cycle: Part Two (Nitrite Oxidizers)

So, you’ve squirted some stuff in your home aquarium, waited a few weeks, watched the ammonia rise and fall, and now you know everything there is to know about the nitrogen cycle in an aquarium system. Right?  Maybe not. Sure, under normal conditions, and when we have all the time in the world, cycling may …

The Nitrogen Cycle: Part Two (Nitrite Oxidizers) Read More »

The Nitrogen Cycle: Part One (Ammonia Oxidizers)

The nitrogen cycle is as important to our aquaria as it is in global biogeochemical processes. Since it truly is a cycle, there is no actual “starting point” or “ending point.” However, in terms of understanding and indeed promoting nitrogen cycling in our captive systems, It is best thought of “beginning” with the most toxic …

The Nitrogen Cycle: Part One (Ammonia Oxidizers) Read More »

Goldline Rabbitfish: Most Underrated Reef Fish Ever?

Oddly, rabbitfishes (Family Siganidae) have never really been hugely popular in the marine aquarium hobby–not with reef aquarists nor with fish enthusiasts. For sure, there has never really been a “holy grail” siganid. This could definitely strike some longtime fishkeepers as downright surprising, as rabbitfish are hardy, reasonably social, active and attractive. For sure, the …

Goldline Rabbitfish: Most Underrated Reef Fish Ever? Read More »


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