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First video of unexplored reef off Tasmania’s east coast

Scuba divers off the East Coast of Tasmania have given us the first close-up look at the marine life on deep reefs in the Freycinet Commonwealth Marine Reserve. Their footage shows an…

Marquee

Toxic Acropora florida is a Whole New Level of Fluorescent Green

Acropora florida is a common shallow-water reef building coral which is commonly seen on the reef, and also a popular coral for aquariums. The typical Acropora florida is green with axial corallites that are a varying degree of orange, but not all ‘Florida…

Conservation

Caribbean Coral Spawn Underway

Caribbean Coral Spawn Reports have been rolling in this week from around the Caribbean, as the annual coral spawn is in full swing. From Florida to Curaçao corals are coming to life after dark to spawn and repopulate the reef.…

Ocean Wonders Magnetic MAG Disks

I’ve been making my own magnetic frag plugs with scavenged aquarium magnets for over a decade. Despite a proclivity for magnetic coral bases, somehow, someway, Ocean Wonders’ magnetic MAG Disks have flown completely under my radar. So you can imagine…

This “zombie” reef is coming back to life

There is some hope for dying coral reefs. A Pacific coral reef declared dead in 2003 is making what appears be a comeback. Coral Castles reef, located on the floor of a lagoon on the Phoenix Islands an archipelago halfway…

Equipment

The Deep Dive on Reef Aquarium Lighting, Part 1: Zooxanthellae, Color Temperature, and Light Intensity

Lighting is important because it directly affects how we visually enjoy the hobby and, more importantly, the vast majority of the corals in our tanks are photosynthetic. In this two-part article, we will first cover some of the basics of…

Vintage

World’s Largest Pearl Was Made By A Giant Clam

The World’s Largest Pearl has been discovered in the Philippines and this thing weighs as much as a small child. Clocking in at around 34Kg or about 75 pounds, the huge gem was being used by a Filipino fisherman as…

How to Eliminate Aiptasia in Aquariums

Aiptasia is a group of pest anemones that all aquarists will invariably have to deal with. Whether you have a FOWLR (fish only with live rock) or a full blown reef tank, these troublesome anemones seem to pop up out of nowhere.…

Saltwater Fish

Captive Bred Potter’s Angelfish Proven Possible by Rising Tide

The Potter’s Angelfish is a gorgeous species of Centropyge which is endemic to the Hawaiian Island chain. While this fish is only collected in the Pacific Ocean, a recent captive breeding breakthrough may make this fish available from aquacultured sources in…