bleached coral showing loss of photosynthetic zooxanthellae

Coral Bleaching Study: Number of Zooxanthellae Affects Bleaching

Albert B Ulrich III Coral, Fish News Leave a Comment

A new study from scientists at the University of Miami demonstrates that coral bleaching events are related to the number of symbiotic algae, called zooxanthellae, that are present in the coral at the time of a stress event (like an increase in water temperature).

Albert B Ulrich IIICoral Bleaching Study: Number of Zooxanthellae Affects Bleaching

Google Underwater Street View

Albert B Ulrich III Coral, General Information Leave a Comment

Google just launched one of the coolest things I’ve seen in a while–within Google Maps, you can get an underwater street view of coral reefs. I remember when Google first blew my mind when they made satellite images available at the click of a button–this is Google’s latest blow your mind …

Albert B Ulrich IIIGoogle Underwater Street View
underwater coral

How to Frag Your First Coral

Albert B Ulrich III Coral, Fragging, how to frag corals Leave a Comment

Do you keep soft corals in your aquarium? Have you ever bought a coral frag from your local fish store, or a fellow hobbyist and wondered just how exactly they did it? Have you thought about fragging coral in your aquarium, but weren’t sure where to start? This article is …

Albert B Ulrich IIIHow to Frag Your First Coral

Fragging Coral Embryos

Albert B Ulrich III Coral 1 Comment

A recent study at the Australian Institute of Marine Science has shown that some coral species are capable of being fragged (reproduced asexually when a fragment breaks off and starts a new, genetically identical clone) even in an embryonic stage. Saltwater aquarists have been fragging corals for years, however this …

Albert B Ulrich IIIFragging Coral Embryos
image of a coral frag

Frag Corals in Separate Containers

Albert B Ulrich III Beginner, Coral, Corals, Fragging, Reef Tank Leave a Comment

Here is a quick tip to consider if you are going to try and frag a coral from your tank. First a quick definition: frag, I believe is a short-hand term for fragment. Most coral species can reproduce from fragments, or frags. Therefore a small piece of a coral colony is a …

Albert B Ulrich IIIFrag Corals in Separate Containers
montipora coral

Small Polyp Stony Corals (SPS)

Albert B Ulrich III Coral Leave a Comment

Small Polyp Stony Corals Small polyp stony corals (SPS) are what many people think of as the conventional reef-building corals.  As a group, they are some of the most beautiful and some of the most difficult to keep, often requiring high flow rates, intense lighting and optimal, stable water chemistry. …

Albert B Ulrich IIISmall Polyp Stony Corals (SPS)

Large Polyp Stony Corals

Albert B Ulrich III Coral Leave a Comment

Large Polyp Stony Corals Coral husbandry is best studied on an individual species basis—because there are exceptions to every rule and generalizations (like the one I’m about to make) often oversimplify the information. Putting my desire for precision and my inner-scientist aside, however, the value of generalizations is that they …

Albert B Ulrich IIILarge Polyp Stony Corals
soft corals title image

Soft Corals: How to care for soft corals in a saltwater aquarium

Albert B Ulrich III beginner coral, Coral, soft coral Leave a Comment

Soft Corals The term soft corals is a relatively unscientific way to lump a bunch of related and unrelated coral species into a simple bucket, defined primarily by what they are (soft, with the absence of a major stony external skeleton) and what they are not (they are not mushrooms …

Albert B Ulrich IIISoft Corals: How to care for soft corals in a saltwater aquarium
Mushroom Coral: Rhodactis sp.

Mushroom Corals

Albert B Ulrich III Coral Leave a Comment

Mushroom Corals Mushroom Corals, or Corallimorphs are great beginner corals because they are some of the easiest species to care for. I recommend mushroom corals for hobbyists at any level. The corallimorphs get their name because the individual polyps are large and fleshy. In lower light environments, the polyps seem to stretch upward in …

Albert B Ulrich IIIMushroom Corals