Salty Q&A: Can Powerheads Be Concealed in Rockwork?

Question I have a new 60-gallon reef tank, and I’m using two powerheads to provide water circulation. One is mounted in the upper right-hand corner of the tank near the back and the other is in the lower left-hand corner near the front. My problem is, while the powerheads are providing good water flow, I … [Read More]

Salty Q&A: Acropora Bleaching Fast!

Question I just introduced an Acropora to my 65-gallon reef tank, and it’s already starting to bleach on me. I’d say about one-quarter to one-third of the colony has already bleached, and it’s been in the tank less than a week. This is my first acro. Apart from it, I have several different varieties of … [Read More]

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 … [Read More]

The Powder Blue Tang: An Iconic Beauty Demanding Exceptional Care

The powder blue tang (Acanthurus leucosternon) is a breathtakingly beautiful, widely recognized (even among non-hobbyists) marine fish that can be a real pain to maintain in aquaria. While it is possible to keep one successfully under ideal conditions, most specimens that enter the aquarium trade unfortunately perish within a short period after purchase. Why such … [Read More]

The Beautiful, Beginner-Friendly Bubble Coral

Recently, I found myself musing over the livestock lineup I had in my first reef tank many years ago. Along with a variety of easy-to-keep soft corals and a handful of hardy fish, I fondly recalled that I also had a solitary large-polyp stony (LPS) coral that brought me a lot of enjoyment—a bubble coral, … [Read More]

The Ebb and Flow of Marine Aquarium Water Movement

Water on the coral reefs is ever on the move. Constantly shifting currents, changing tides, and rolling or crashing waves make for quite a dynamic environment that saltwater aquarium hobbyists must attempt to recreate in their systems for the health of the fish and invertebrates in their care. Water movement performs several vital functions in … [Read More]