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What to Consider when Converting a Fish-only Tank to a Reef System

What to Consider when Converting a Fish-only Tank to a Reef System

“Caribbean Chris” and I are very frequently asked what it takes to convert a fish-only marine aquarium to a reef system containing corals and other sessile invertebrates. Can you just go ahead and add the invertebrates? Can you modify the existing system to suit the corals, or do you have to start the whole thing from scratch with a new tank and equipment? What has to change … [Read More...]

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Blackear Wrasse (H. poeyi) hide in sandy substrate when frightened

When Marine Fish Mysteriously Disappear

You’re strolling past your marine aquarium, minding your own business, when you notice that something is amiss. The [insert name of fish here] that invariably comes … [Read More...]

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True union ball valves allows you to easily disassemble plumbing for cleaning and changes

Aquarium Plumbing: True Union Ball Valves and Why You Should Love Them

One of the cool things about the reef aquarium hobby is that you tend to pick up some useful skills by accident. If it wasn’t for the reef-keeping hobby, I may never … [Read More...]

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Marco Pardun’s 104-gallon Room Divider Triton Reef

Marco Pardun’s 104-gallon Room Divider Triton Reef

When I first came across this aquarium, it caught my eyes for a variety of reasons. First and foremost was the variety of color in its inhabitants. Next is the fact that it is a room divider (something I’ve always wanted to build) and the whole setup is really … [Read More...]

Beware Multiple Saltwater Aquarium Syndrome!

Beware Multiple Saltwater Aquarium Syndrome!

It starts innocently enough. You’ve had a fish-only marine tank up and running for quite some time and would like to try your hand at reefkeeping—so one aquarium becomes two. Maybe then you realize that you need to rehome a fish that has outgrown its aquarium … [Read More...]

Marine Fish Compatibility Concerns You Might Not Have Considered

Marine Fish Compatibility Concerns You Might Not Have Considered

When we think of compatibility problems between marine fish, what usually comes to mind is one specimen behaving outright aggressively toward another with the underlying motive of establishing territorial dominance or acquiring a meal. But sometimes … [Read More...]

Bellevue H.S. Marine Science Lab Expands

Bellevue H.S. Marine Science Lab Expands

Last year I introduced you to David Bowers and the incredible marine science classroom laboratory he runs at Bellevue High School in Ohio, USA. Over the last 20 years, David and his students have transformed the humble classroom from a single modest aquarium … [Read More...]

The Flame Hawkfish: a Vision in Red

The Flame Hawkfish: a Vision in Red

I’ve long been a fan of the hawkfishes, and many a specimen has graced my various tanks over the years—most often the readily available and affordable (for me) Falco’s hawkfish (Cirrhitichthys falco). But another hawk that I’ve always found particularly … [Read More...]