How to Mix Aggressive and Territorial Marine Fish

One of the biggest pains in the butt with saltwater aquarium fish is not just those who are a threat to our corals, it’s those who are a threat to each other! Here are some tips for how to manage…

De Jong Marinelife shows off over 60 Captive-Bred Saltwater Fish Species at Interzoo 2024

Dutch marine wholesaler turned fish breeder De Jong made a bold statement on their stand at this year’s Interzoo, opting to omit the mega fish and coral display tank they are famous for in favor of a commercial fish rack…

Ten of our Favorite #reefbuilders Fish from Instagram

We love saltwater fish just as much as we love corals. Here are just ten of the over 300,000 Reef Builders tagged images on Instagram.  Make sure you tag #reefbuilders for a chance to have your fish, tank, or corals…

Are Fish Necessary in a Reef Tank?

After keeping reef tanks for almost forty years, and having viewed literally thousands of successful tanks, including a few recently sans fish, it got me to thinking are fish necessary in a reef tank.  Now before you think I have…

How to Acclimate New Fish

For those of us who started with freshwater tanks, the general rule for acclimating a new fish was to simply float the bag until the temperatures matched, gradually add some tank water to gradually acclimate the fish to the tank’s…

Pigment Abnormalities may be related to Significant Population Decline

Researchers have documented new records of marine fish pigmentation abnormalities, including an albino-melanistic fish, the first record of a leucistic Great Hammerhead Shark, the first record of leucistic Almaco Jacks, and the first melanistic Giant Manta ray in the North…

My Mini-Reef Past, Present, and Future

I’m Back. Well, after a brief six-year hiatus, I am happy to be back writing for Reef Builders on a regular basis. To be honest, it is kind of bittersweet, as it is not quite the same as it was…

Hands-on with the 128 Gallon Rimless Tank & Stand from Pro Clear Aquatic Systems

It’s hard to deny that the ‘saltwater fish’ aquarium hobby has almost completely transformed into the ‘coral reef’ aquarium hobby, with the majority of discussions being framed in the context of a REEF tank. This is mostly good with some…

All the Fish in the Reef Builders Aquarium Hotel [Video]

Keeping most fish in a dedicated aquarium is incredibly more easy than trying to condition and acclimate them to aquarium life in a reef tank. For most of this year the Mode retail rack at the Reef Builders studio has…

This is What Healthy Quarantined & Conditioned Fish Look Like [Video]

Several weeks ago we received a truly epic shipment of fish from RVS Fishworld and Coast Tropicals. The unboxing of these awesome fish, and my live reaction at this overwhelming bounty was captured on video in which I shared my shock…