Home

Pizza Anemones are Poised for their Aquarium Moment

Large showy anemones were once among the most revered of all reef aquarium animals with species like Ritteris and Carpet anemones often being a poignant accent and conversation starter in nice large…

Rare and Unusual Orange Centropyge multispinis Photographed in Maldives

One of the most interesting aspects of the beloved angelfish is how often we encounter unusual morphs and aberrations of their typical color pattern, resulting in rare specimens with an appearance that we’ve never seen before. Some species of Centropyge…

Featured

Are You All Caught Up on YOUR Reef Therapy?

Reef Therapy is quickly becoming a runaway hit of reef aquarium content with substantial examinations about many aspects of reef aquariums, through the lens of 50 years of combined reefing experience. When Mark and I started recording our frequent chats…

Deltec VF8000 is More Than Just a Larger Roll Filter

The Deltec VF8000 is a new model of automatic filter roll that is not only rated for a higher capacity, but also seems to introduce some much appreciated refinements to make it work better than ever. The Deltec VF fleece…

Dendrogyra cylindrus Declared Extinct in Florida

The coral reefs of Florida have seen a long steady decline for more than 100 years and a lot of research and effort has been done to try understand the root causes of this degradation and how it can be…

Set Up a Saltwater Aquarium

How to Cycle a Reef Aquarium Right Away – With Corals First

Forever and a day we have been schooled in how to set up and cycle an aquarium. Set it up, wet it, add bacteria, test, add fish, test again, and then eventually add corals. But here at Reef Builders we can’t help but think there’s another way to fast reef tank cycling, and that actually, people have been doing it wrong all along…

New Refined DC Versions of Geo’s Reef Calcium Reactors

Geo’s Reef is one of the oldest brands of acrylic reef aquarium equipment in America and their designs have been thoroughly fleshed out over a couple decades in the hobby. For most of this time the layout of the plumbing…

Featured

Reef Shows are Back Baby! Video Tour of Reefapalooza Orlando

ReefStock 2020 was the last big reef aquarium event before our social world was turned upside down so it was incredibly fitting that social guidelines for vaccinated Americans were revised right before Reefapalooza Orlando this year. It was a refreshing…