Salty Q&A: Okay to Add LPS to Established Softy Tank?

Question Hi guys! My husband and I really enjoy your site and the commonsense advice you always give. My question for you is about the feasibility of adding an LPS coral to an established 60-gallon soft-coral tank. We’ve been keeping soft corals successfully for a long time, and now we’d like to give stony corals … [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]

Signs that Allelopathy Might Be Agitating Your Inverts

Since corals and other sessile invertebrates are more or less stuck in place and can’t chase away competitors or run from predators, many of them—particularly among the soft corals—have evolved the tactic of exuding toxins into the water to prevent other inverts from encroaching and to discourage predation. As you can imagine, this “chemical warfare,” … [Read More]

The Reef Aquarium After Hours: Four Reasons to Keep That Flashlight Handy

Anyone who has done any night diving knows that nighttime activity on coral reefs is very, very different from what goes on there during the day. A dramatic “changing of the guard” occurs, with diurnal fish seeking refuge in the reef and nocturnal predators and planktivores taking dominion. Parrotfishes, wedged in caves or crevices, cloak … [Read More]

5 Common Reasons Leather Corals Refuse to Expand

The soft coral species commonly known as leather corals (various and sundry Sarcophyton, Lobophytum, Sinularia, and Alcyonium species among others) are often among the first invertebrates budding reef hobbyists select for their systems—and with good reason. The leather corals, so named for their tough, leather-like texture, tend to be extremely hardy, adaptable, and easy to … [Read More]

5 Ways to Counteract Coral Combat in the Marine Aquarium

At a casual glance, corals would appear to be an inoffensive lot, generally espousing a “live-and-let-live” philosophy. After all, when you’re firmly affixed to the substrate, how much trouble can you really cause for your neighbors? Plenty, as it turns out! Corals and other sessile invertebrates may seem harmless, but they actually take aggression to … [Read More]