New & Featured Products
What do I need for my Tank?
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!
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!
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
Click below to explore our content library and learn more about how to best use copepods, phytoplankton & macro algae in your system!
Once upon a time, all of our saltwater fish, invertebrates, and corals were wild caught. Hobbyists were still using compact fluorescent bulbs and tap water in their reef tanks, under gravel filters were still cutting edge technology, and most people had their fish for six to twenty four months before they died of “old age.” …
There comes a time in this hobby when many aquarists grow bored of their beginner corals and they become interested in small and large polyp stony corals (SPS and LPS, respectively). For those of you who have been maintaining a “softie” reef (which includes coral such as zoanthids, mushrooms, leathers, and star polyps), you may …
When setting up new aquariums, most people worry about and focus on ammonia and nitrites. Everyone knows that cycling a tank with fish is dangerous because of these two compounds, as they burn the gills and body of the fish as the tank matures. But, once these get to zero, most people are satisfied and …