Posts tagged scuba diving
Invasive Species: Volitan Lionfish
Nov 7th
Environmental responsibility is not something that most people think about when they are purchasing fish or plants for their aquarium, but it should be. Responsible ownership is vital to the long term availability of non-indigenous livestock. Unwanted fish and plants should never be released into the wild. In recent years there have been far too many stories about invasive plants and animals ravaging local ecosystems, with the blame being placed upon negligent or uneducated aquarium owners.
Believe it! 15 years later, the existence of Lionfish is not only documented, but they are growing in number, and becoming a major problem. NOAA has documented specimens ranging from Florida to New York. Some divers have reported hundreds on the offshore wrecks of the Carolinas. Lionfish are voracious predators, with little who prey on them. These invasive predators have the potential to destroy these sensitive ecosystems.
I hope that has given you something to think about, until next blog.
Dave
Species Profile; Queen Angel
Sep 12th
![]()
Mellisa is back with some more tales of her time in Honduras. I hope that you enjoyed hearing about her diving adventures. This one is about her experience with the Queen Angel.
Welcome Melissa.
My favorite fish by far while diving in Roatan, Honduras was the Queen Angelfish, Holocanthus cillaris. Every dive we went on I always had my eyes on the look out for a queen. Queen Angelfish are among the most stunning fish in both juvenile and adult stages on the reef.
As far as captive care for a Queen Angelfish they require a large tank due to their large adult size of 15”. Angelfish in general require good water quality and places to hide to feel safe. It is not usually a good idea to house queen angelfish with any other angels unless it is in an extremely large tank, like in a public aquarium with thousands of gallons. This is because they become very territorial in a cramped tank. Juvenile queen angelfish are known to pick parasites from the gills and body of other larger fish. Queen angelfish should be fed a diet high in algae and sponge along with a variety of meaty foods mixed in. Angel Formula is a good staple food for a queen since it is made from marine sponges and algae. Saltwater Vita-Chem is another good product to mix in with the food to make it more nutritious and keep your angle happy and healthy for years to come.
The queen angelfish is also commonly confused with a similar species of angelfish, the Blue Angel Holocanthus bermudensis . Their juvenile colors are very similar but the Queen angel has curved bars where as the Blue Angelfish all fairly straight and vertical. The adult Queen Angelfish has a bright yellow tail and a brilliant blue crown on the top of its head thus making it worthy of the name “Queen” Angelfish.
Anyone interesed in keeping the Queen Angel in their aquarium can also check out this video I helped make: Queen Angel
~Melissa
Guest Blog: Diving in Honduras
Aug 24th
![]()
That Fish Blog is proud to introduce our first guest blogger; Melissa Leiter. Melissa is one of our staff Marine Biologists, as well as being an avid aquarium hobbyist. Melissa is also a Fish Room Supervisor in our Lancaster, PA retail store.
Welcome Melissa.
If you are looking for a one of a kind vacation and are scuba certified, Roatan, Honduras is a place you really should consider. I had the opportunity to take a summer class offered through Millersville University in Roatan, Honduras. It was a very intense 3 week class but I learned so much and had a blast all at the same time. It was really nice to be able to see many of the fish that we sell at That Fish Place in their natural environment swimming around so gracefully.
The corals themselves were an amazing sight to see. The reef structure in itself was more than I could have ever imagined. We did many dives to observe the reef, paying close attention to detail so that we would be able to identify a variety of corals learning their common name as well as scientific name.
We had the opportunity to do two night dives to observe the night life on the reef. We descended into the warm darkness right around sunset. The reef is a totally different world when surrounded by darkness. Stoplight parrotfish, Sparisoma viride could be seen in a mucous cocoon and most of the fish that were out and about during the day were totally out of sight, hidden in crevices for protection from the creatures that roam in the night. Octopus and cuttlefish were out scouring for food as well as large spiny lobsters and spider crabs. Basket stars, Astrophyton muricatum, were also abundant with their arms outstretched collecting plankton as it drifted by. At random times throughout our night dives we took a few minutes to “feed the corals” where we held our dive lights to a coral and all the plankton swarmed to the light and became coral food. The pillar coral, Dendrogyra cylindrus was a favorite to feed with its polyps extending and retracting continuously.
One of the last things we did before our ascent to the surface was to gather together on the sandy bottom and turned out our lights for a few minutes. Once our eyes adjusted to the darkness the bioluminescence came into view. If you waved your arms that was enough to agitate the critters that store the bioluminescence and you could see a faint light coming out of the pitch black . Another spectacular sight were “string of pearls”. “String of pearls” are ostracods, which are tiny crustaceans that are scurrying about. These tiny crustations attract mates along the same lines as fireflies do flashing their bioluminenscence, each species with a slightly different pattern. They lit up the dark with flashes of light all strung together like fireflies dancing through the sky.
While my diving at the reef has come to an end for this trip the memories I have gathered will remain with me for many years to come. Maybe if more people we able to see the reef first hand they would want to do all they could to save it for future generations. The ocean truly is a world of its own.
~Melissa


