Soft Coral: Gorgonians

Sea Rod

Soft Coral: Gorgonians by Lydia Weltmann Found in the tropics and subtropics of the world, Gorgonians are a breed of soft coral colonies that typically have a tree-like appearance. Their branch-like parts distinguish them from other coral, as they can appear as sea fans, sea whips or blades, or they can be bushy. While they are all little wonders, each shape is actually a result of where they are found underwater. … [Read more...]

The Great Barrier Reef by Ashton Felts

The Great Barrier Reef is a major tourist destination, and one of the seven wonders of the world.

The Great Barrier Reef by Ashton Felts  The Reef One of Australia's most remarkable natural gifts, the Great Barrier Reef is blessed with the breathtaking beauty of the world's largest coral reef. The reef contains an abundance of marine life and comprises of over 3,000 individual reef systems and coral cays and literally hundreds of picturesque tropical islands with some of the world's most beautiful sun-soaked, golden … [Read more...]

Goniopora: An Overview by Ashton Felts

Green Goniopora

Goniopora: An Overview by Ashton Felts Goniopora is a sensitive coral that when probed can sensitize and contract. Goniopora are a very difficult coral to keep alive and are not recommended for a novice reef aquarium hobbyist. The short, greenish-colored species, for example, are less sturdy and durable than the pink or purple species. However, it is very seldom that any of these will survive longer than three months. … [Read more...]

Reef Lighting and Coral Development: A Basic Guide

IC Kaleidescope

  Reef Lighting and Coral Development: A Basic Guide By: Henry Garcia Hello, aquarium enthusiasts! Before we begin with the main content, let’s have a quick review of coral. Coral is made up of two parts: an algae known as zooxanthelle, which lives in the tissue of an animal known as a polyp. The zooxanthelle performs photosynthesis, which gives the polyp energy. The polyp eats zooplankton and produces waste, w … [Read more...]

Corals Struggle to fend off increasing sponge populations


Corals Struggle to fend off increasing sponge populations By: Ashley Gustafson It is without question that coral reefs are synonymous with exceptional biodiversity and great beauty. Coral species themselves are a collection of unique and diverse organisms. Modern times have brought great peril to these ethereal ecosystems whether it be raising ocean temperatures or over fishing. As if corals didn’t have enough threats … [Read more...]

What a Clown! The Mandarin Dragonette

Mandarin Goby

What a Clown! The Mandarin Dragonette by Jules Cremer         We are all attracted to different things. It may be a hobby or a person. It may be a place or a memory. I, personally, find coral reefs attractive and beautiful. There is something about all of that color that draws in the eye and draws out a breath of awe. And one of the things I find the most attractive about a coral reef … [Read more...]

New Coral Release: Sexy Samoensis

Acropora Samoensis

Sexy Samoensis Here is a shot of our acropora samoensis.  This coral actually came to us about 4 years ago from a local reefer here in Chicagoland that was doing some work on his tank and needed it out of there for a while.  We placed it medium in one of our display tanks and then gradually moved it to the top where it sits today.  In fact, you can see it on the live ReefNation webcam on our homepage.  Its on the top lef … [Read more...]

EcoTech Radion XR30w G3 Review

Radion G3 XR30W

Overview The EcoTech Radion XR30w Generation 3 (G3) fixtures are the latest update to the Radion product line. In prior years, EcoTech made some minor adjustments to the LEDs, but the Generation 3 release features both LED upgrades as well as a redesign to fix flaws to the design of previous units. At ReefNation, we have been looking into the LED fixtures or DIY kits that offer full spectrum lighting to be able to … [Read more...]

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Coral tissue necrosis Stn/Rtn

coral bleaching

Coral tissue necrosis Stn/Rtn By Justin Hester Have you ever had a coral that lost its tissue and bleached right before your eyes? Have you ever noticed a coral losing tissue at its core and watch this spread out to its branches over a few days or weeks? What does this mean? What causes it to happen? Can it be prevented or even stopped? Trial, observation, and I'm sure many errors have given me a glimpse into … [Read more...]

Controlling Nitrates with Chaeto?


  Controlling Nitrates with Chaeto? by Justin Hester Show most reef aquarists a picture of squiggly algae and 90% would probably call out the name chaetomorpha or "chaeto"  as its commonly known.  Many of us use this algae to export nutrients in the form of Nitrate and phosphate from our reef systems.  Knowing how much you need to keep though has always been kind of a mystery and depends on many factors in yo … [Read more...]