Is a ‘Pest Free Guarantee’ Too Much to Ask for in Corals & Frags?

It’s not a stretch to say that the coral aquarium hobby is a fairly mature past time with more than a few decades of experience and refinement. After more than twenty years of intensive culture we have access to a…

Our Top 10 Favorite Corals Right Now

We go to great lengths to educate and inform our readers and viewers about many aspects and all dimensions of the reef aquarium hobby. It’s therefore really refreshing once in a while to take a step back and just admire…

Black and white Penguin tang is the latest aberrant Scopas to appear

Reefbuilders is the home of saltwater color morphs and has covered more koi, calico, yellow and piebald Scopas tangs than anyone else. So let us introduce you to our next example of polychromatism in Zebrasoma scopas, the Bicolor.

Beginner Tips For LPS Corals

While researching online, you will come across the word LPS corals without knowing much about them. So, we’ve put together these tips for a better understanding of these large puffy colorful corals.  For new aquarists, Large Polyp Stony (LPS) corals…

Don’t Freak Out About Minimal Tissue Loss on SPS Corals

SPS corals like Montipora, Acropora and many others are some of the most diverse, colorful and interesting stony corals we can keep and grow in aquariums. Along with their fast growth and incomparable colors comes some risk because their fast…

Coral CAN be Colorful Under White Lights [Video]

If you spend anytime on reef aquarium social media these days, especially facebook and instagram you might be shocked by how colorful some people’s corals tanks and corals are. Hopefully by now most of you are aware that these photos…

The Joe Dirt Acro is one of Worldwide Corals’ Most Underrated SPS Corals

The Worldwide Corals Joe Dirt Acro is an elegant, delicately branching thin staghorn that has a hidden beauty that betrays its name. If someone gave you a frag of a kinda purplish tip staghorn with a basic nutty brown base…

Protecting Our Elders – Hundred Year Old Pavona clavus Corals

Pavona clavus is a coral species which is well documented for its often colossal size. However, what is even more impressive is the age of these large coral colonies, with some reaching hundreds of years in age. When we think…

This is Where Micro Lord Corals Come From

Nic from Ultra Coral Australia gave us the chance to visit the land of Micromussa lordhowensis, or ‘Acans land’ and boy, this place didn’t disappoint us. We got lucky to see in their habitat, all the most popular varieties of…

TSM Corals Acquires One of the Nicest Goldrim Achilles Hybrid

One thing we love about hybrids between certain species of fish is how variable their appearance can develop. Sometimes the colors of hybrids ‘cancel’ each other out leading, to an interesting but dull fish, but other times the colors compound…