The Deltec E-Flow is one of the more surprising sleeper pumps to come out of Germany in the last several years. Nothing about the Deltec’s large, powerful water movers conveys just how much water they move, or how efficiently they…
Aquarium Grown Palauastrea has Really Blossomed
Palauastrea is one of the least known SPS coral that is not just rare in the aquarium hobby, but pretty much all but unknown. P. ramosa is in the family Astrocoeniidae which includes some familiar aquarium corals including Pocillopora and Seriatopora and…
How to Set Up a Reef Tank Part 4: Adding Corals!
Adding corals to a new reef tank is arguably one of the most fun and exciting parts of setting up a reef aquarium. Seeing how the corals look in your tank and finding the perfect place for them in the…
How to Setup a Mini Reef Aquarium – Part 3: Making Saltwater, Salinity, and Temperature
If you’ve been reading this website for any length of time, there’s probably not much that we need to tell you about how to mix seawater for a mini reef aquarium or saltwater fish tank. There’s countless how-tos on mixing…
First Look at the Primary Polyp of a Baby Cynarina Coral
The world of captive breeding saltwater fish is full of cute baby pictures of fish, but the same cannot be said for our precious, beloved corals. Since all of our corals are either wild-collected or propagated asexually, we are almost…
TheReefbox Launches new Concept All in One Aquarium on KickStarter
TheReefbox is a new concept reef setup that has a slightly different, modern take on how an all in one aquarium should work. This is far from the first all in one reef aquarium setup that we’ve seen have a…
How to Setup a Mini Reef Aquarium – Part 2: Aquascaping, Live Rock & Leveling
The reef aquarium hobby has grown so much that it’s never been easier to set one up, although a deluge of information can make it hard to know where and how to start. In an effort to give our readers…
Biota Swallowtail Angelfish is Growing up into a Beauty!
It’s been almost half a year since we first received our captive bred Biota Swallowtail Angelfish and we’ve been wanting to tell you about how this little fish has really captured our attention. Of all the angelfish groups, the swallowtails sometimes…
RK2 Systems Teases New Smart Sump Design
The RK2 Smart Sump is a new line of aquarium filtration vessels from the company that is best known for making large, commercial grade protein skimmers. These heavy duty protein skimmers are most often spotted at public aquariums and aquaculture…
How to Setup a Mini Reef Aquarium – Part 1: Tank, Stand and Equipment
Since 2007 Reef Builders has been the premier source of daily news about the reef aquarium hobby, product releases, rare fish, exotic corals, and great reef tanks. As we draw a curtain on the decade of the 2010s, Reef Builders…